Bài ôn tập cuối học kỳ II môn Tiếng Anh Lớp 12 - Năm học 2015-2016

docx 10 trang Người đăng hapt7398 Lượt xem 806Lượt tải 0 Download
Bạn đang xem tài liệu "Bài ôn tập cuối học kỳ II môn Tiếng Anh Lớp 12 - Năm học 2015-2016", để tải tài liệu gốc về máy bạn click vào nút DOWNLOAD ở trên
Bài ôn tập cuối học kỳ II môn Tiếng Anh Lớp 12 - Năm học 2015-2016
 REVISION FOR THE FINAL SECOND TERM TEST (2016)
I. Choose the word whose underlined part is pronounced differently from that of the others
1. A. water 	 	B. determine	C. penalty 	D. question
2. A. steps 	 	B.tourists 	C.symbols 	D. banks
3. A.compete 	B. medal 	C.intend 	D. Defend
4.a. women 	b. men 	c. led 	d. intellectual
5.a. throughout 	b. although 	c. right 	d. enough
6.a. history 	b. significant 	c. philosophy 	d. pioneer
7.a. power 	b. wife 	c. allow 	d. known
8.a. believed 	b. considered 	c. advocated 	d. controlled
9.a. catastrophe 	b. propose 	c. become 	d. survive
10.a. treatment 	b. struggle 	c. initiate 	d. total 
11.a. symbol 	b. emergency 	c. poverty 	d. qualify
12.a. appalled 	b. dedicated 	c. designed 	d. injured
13.a. society 	b. delegate 	c. president 	d. protection
II. Choose the word whose main stress is different from that of the others:
1. A. destroy	B. threaten	C.collect 	D. begin
2. A.educate 	B.animal 	C. computer 	D. natural
3.a. deny	b. legal	c. women	d. limit
4.a. human 	b. mother 	c. struggle 	d. belief
5.a. opportunity 	b. economic 	c. society	d. intellectual
6.a. history 	b. natural 	c. pioneer 	d. business
7.a. advocate 	b. consider 	c. cultural 	d. period
8.a. disaster 	b. prisoner 	c. agency 	d. family
9.a. international 	b. federation 	c. society 	d. dedication
10.a. catastrophe 	b. emergency 	c. conventional 	d. vulnerable
11.a. suffering 	b. president 	c. protection 	d. conference
12.a. involve 	b. propose 	c. improve 	d. soldier
III. Choose the underlined part that needs correcting:
1. You and your sister went to the cinema last night, weren’t you?
	 A	 B C D
2. Up to now Michael wrote five novels and over sixteen short stories.
	 A B C D
3. Mark took many trips to Asia since he started his own import-export business.
	 A B C D
4. Did you and your family at Jane’s birthday party yesterday evening?
 A B C D
5. Last Sunday while Sandy cleaned out the attic, she found her mother’s wedding dress
	 A 	 B C D
6. She is attending a three – day conference on AIDS education, doesn’t she?
	A	 B	C	D
7. The boy which was given first prize in the contest was very happy.
	 A	 B	 C	 D
8. People consider it rude to point about anymore
 A B C D
9. In spite the danger, they managed to cross the river during the night 
 A B C D
10. Her last book is published in 20 languages years ago
 A	 B	C	 D
11. The child became angrily and stamped his feet
 A B C D
12. We whispered so as to no one could overhear our conversation.
 A B C D
13. Everyone want to reduce the pollution of our environment
 A B C D
14. The people who waiting outside are becoming impatient.
 A	 B	 	 C	 D
15 . He apologized about not coming to the meeting.
 A	 B	 C	 D
16. These televisions are all too expensive for we to buy at this time.
 A B C D 
17. Linda asked her father that he was going to New York the next Sunday.
 A B C D
18. If you had gone to bed early last night, you wouldn’t have been so sleepy now
 A B C	 D
IV. Choose the correct answer by circling the letter a, b, c or d.
A ________ problem, feeling, or belief is difficult to change because its causes have been there for a long time.
a. deep-seated 	b. significant 	c. dependent 	d. intellectual
In our modern time, the _______ of women has shifted from homemaker to outside worker.
a. role 	b. period 	c. right 	d. pay
Women are considered to be better suited for childbearing and homemaking rather than for involvement in the public life of business or politics.
a. education 	b. advocate 	c. participation 	d. recognition
Women's taking part in politics has got widespread objections from male statesmen in many parts of the world.
a. intensive 	b. extensive 	c. inside 	d. slight
On 18 December 1979, the Convention on the Elimination of All Forms of Discrimination against Women was adopted by ________ United Nations General Assembly.
a. a 	b. an 	c. the 	d. Ø
When they are at ________ work, employed men work about an hour more than employed women.
a. a 	b. an 	c. the 	d. Ø
The women's movement has brought light to ________ areas in which women do not have equality with men.
a. a 	b. an	c. the 	d. Ø
8._____________ he didn’t attend English courses, he spoke English so well.
	A. Because	B. However	C. Although	D. Despite
	9. Neither you nor I _____________ responsible for the bad result.
	A. are	B. be	C. am	D. is
10.When a women works outside the home and makes money herself, she is ________ independent from her husband.
a. financially 	b. politically 	c. philosophically 	d. variously
11.Not all women can do two jobs well at the same time: rearing children and working at office. 
a. educating 	b. taking care of 	c. homemaking 	d. giving a birth
12.There have been significant changes in women's lives since the women's liberation movement.
a. controlled 	b. economic 	c. important 	d. natural
13.Childbearing is the women's most wonderful role.
a. Giving birth to a baby 	b. Having no child
c. Bring up a child 	d. Educating a child
Did your son pass the university entrance examination?
a. make up 	b. get along 	c. go up 	d. get through
What may happen if John will not arrive in time?
a. go along 	b. count on 	c. keep away 	d. turn up
Johnny sometimes visits his grandparents in the countryside.
a. calls on 	b. keeps off 	c. takes in 	d. goes up
They decided to postpone their journey till the end of the month because of the epidemic.
a. take up 	b. turn round 	c. put off 	d. do with
The stranger came ___ me and asked, "Is there a post office near here?"
a. on to 	b. away from 	c. out of 	d. up to
Frankly speaking, your daughter does not take _______ you at all.
a. after 	b. along 	c. up 	 	d. over
She is not really friendly. She does not get on well ____ her classmates.
a. from 	b. with 	c. for 	d. to
I would be grateful if you kept the news _______ yourself. Do not tell anyone about it.
a. from 	b. to 	c. for 	d. at
I do not use those things any more. You can _______ them away.
a. get 	b. fall 	c. throw 	d. make
They were late for work because their car _______ down.
a. got 	b. put 	c. cut 	d. broke
24.The bomb exploded in the garage; fortunately no one hurt.
A. put on	 	B. went off 	C. got out 	D. kept up
25.She is not really friendly. She does not get on well ____ her classmates.
A. from 	B. with 	C. for 	D. to
Alice opened the door and found that it ________ to a small passage.
a. led 	b. showed 	c. cut 	d. pointed
When you are finished using the computer, can you please ______ it off.
a. take 	b. turn 	c. do 	d. go
When the alarm went off, everyone proceeded calmly to the emergency exits.
a. fell 	b. exploded 	c. called 	d. rang
Look out. There is a rattlesnake under the picnic table!
a. Listen 	b. Be careful	c. Go 	d. Watch
Mrs. Jones's husband passed away fast Friday. We are all shocked by the news.
a. got married 	b. divorced 	c. died 	d. were on business
If you do not understand the word "superstitious," look it up in the dictionary.
a. find its meaning 	b. write it 	c. draw it 	d. note it
32.Thanks to the women's liberation women can take part in ____ activities.
A. social 	B. society 	C. socially 	D. socialize
33. He has been working as a for twenty years.
A. physicist 	B. physics 	C. physically 	D. physical
34. He was_______excited that he couldn’t go to sleep.
A. much 	B. so	C. too 	D. such
35._______ my homework, I went to bed.	
A. After I had finished 	B. After finished
C. Finished 	D. After had finished
36. If I had enough money, ________
A. I bought a new motorbike	B. I would buy a new motorbike.
C. I buy a new motorbike	D. I will buy a new motorbike.
37.Despite _______, we knew that he was guilty.
a. denied 	b. denying 	c. he denied 	d. his denial
38. This novel is .than the one I read last week.
	A. good	B. as good	C. more good	D. better
39. Yesterday I met your brother, had taken us to the Headquarters of the United Nations in New York before.
	A. who	B. whose	C. whom	D. that
40. I spent five hours..my homework last night
	A. do	B. doing	C. to do	D. did
41.It was very cold _______ she did not put on her coat.
a. in case 	b. but 	c. even if 	 d. even though
42. When I got to the airport the plane had taken..
	A. off	B. up	C. away	D. into.
43.“Let’s go to the movie now.” – “Oh, ________”
A. Good idea	B. I don’t	C. Why's that? 	D. I need it
44.Jane: “I passed the driving test yesterday”	Helen: “__________”
A. What a pity!	B. Congratulations! C. I am sorry	D. You’re welcome
45.The party was _______ I had expected.
a. more a hundred times fun than 	b. a hundred times fun more than
c. a hundred times more fun than 	d. more fun than a hundred times
46._______ he drank, _______ he became.
a. More / more violent 	b. The most / the most violent
c. The more / the more violent 	d. The less / less violent
47.French is a _______ language to learn than English is.
a. difficult 	b. more difficult
c. most difficult 	d. more and more difficult
48.His house is _______ mine.
a. twice as big as 	b. as twice big as
c. as two times big as 	d. as big as twice
49.It gets _______ to understand what the professor has explained.
a. the more difficult 	b. more difficult than
c. difficult more and more 	d. more and more difficult
50.The referee's _______ is the most important in any sport competition.
a. decide 	b. decisive 	c. decision 	d. decider
51._______ players are not allowed to interfere with the opponent's movements unless the player is holding the ball. 
a. Defense 	b. Defensive 	c. Defender 	 d. Defensively
52._____ the start of each period, both teams line up on their own goal line.
a. In 	b. For 	c. From 	d. At
53.They are going to _______ the pool to 1.8 meter. 
a. deep 	b. depth 	c. deepen 	d. deeply
54.The referee had no hesitation in awarding the visiting team a _______.
a. penalty 	b. penalize 	c. penal 	d. penalization
55.The fire ________ by lightning.
a. must cause 	b. must be causing
c. must have caused 	d. must have been caused
56.The room ________ once a day.
a. should clean 	b. should be cleaning
c. should be cleaned 	d. should have cleaned
57.Which subject is this book ________?
a. for 	b. on 	c. of 	d. up
58.The computer _______ reprogramming. There is something wrong with the software.
a. must 	b. need 	c. should 	d. may
59.You _______ touch that switch, whatever you do.
a. mustn't 	b. needn't 	c. won't 	d. wouldn't
60. “If I were you, I'd tell him the truth,” she said to me.
A. She said to me that if I were you, I'd tell him the truth.	
B. She will tell him the truth if she is me.
C. She suggested to tell him the truth if she were me.	
D. She advised me to tell him the truth.
61. “I'm really sorry for being late again,” said Ann.
A. I felt sorry for Ann's being late again.	
B. Ann was sorry for my being late again.
C. Ann excused for my being late again.	
D. Ann apologized for being late again.
62. “How beautiful the dress you have just bought is!” Peter said to Mary.
A. Peter promised to buy Mary a beautiful dress.	
B. Peter said thanks to Mary for her beautiful dress.
C. Peter complimented Mary on her beautiful dress.	 
D. Peter asked Mary how she had just bought her beautiful dress.
63. They invited him to the party, ___________?
 A. do they 	B. don’t they 	 C. did they 	D. didn’t they
64. I’m a bit late, ______?
 A. am not I	B. aren’t you 	 C. are you	D. aren’t I
65. No one is indifferent to praise, ______?
 A. is one	B. isn’t one	 C. is he	D. are they
66. Somebody has left these socks on the bathroom floor, ______?
 A. have they	B. haven’t they	C. has he	D. hasn’t he
67.Havy: “ Thanks for your help, July” July: “ .”
 a. With all my heart b. Never remind me c. It’s my pleasure d. wish you
68. George :” .” Michelle: “ Thank you for you compliment”
 a. You’ve done your work b. This a present for you 
c. I’m glad you’re well again d. You look pretty in this dress
69. John : “ Do you think that we should use public transportation to protect our environment?”
 Laura : “ ”
 	a. Of course not , you bet! 	b. Well, that’s very surprising 
 c. There is no doubt about it 	d. Yes, it’s an abserb idea 
70. If they _______ me, I wouldn't have said no.
A. had invited	B. invited	C. invite	 D. would have invited
72. Mexico City, _________ has a population of over 10 million, is probably the fastest growing city in the world.
	A. which	 B. whose	C. that D. A & B are correct
73. This is Henry, __________ sister works for my father.
	A. who	B. whose 	 C. that D. A & C are correct
74. He’s the man ___________ people like at first sight.
	A. who 	B. whom 	C. that 	 D. All are correct
75. Could you iron the trousers ___________ are hanging up behind the door?
	A. who B. which 	C. that D. B & C are correct
76. He was _____ he never washed his clothes by himself.
A. too lazy	B. so lazy that	C. very lazy that	D. such lazy that
77. They are _____ young _____ drive the car.
A. so / that	B. too / to	C. enough / to	D. not only / but also
78. It was _____ a boring speech that I felt asleep.
A. such	B. so	C. very	D. too
	79. Jim passed his driving test...................... surprised everybody.
	A. who                 B. which                       C. Whose                                D. whom
	80. The factory.............. John works in is the biggest in town.
	A . when              B. where                            C. which                              how
81.Washing machines, vacuum cleaners, and dish washers are labor _______ devices which help us do housework easily and quickly.
a. improving 	b. making 	c. saving 	d. employing
82.Those companies were closed due to some seriously financial problems.
a. taken off	b. put away 	c. wiped out 	d. gone over
83.The computer allows us to work fast and _______.
a. efficiently 	b. differently 	c. variously 	d. freshly
84.The ASEAN Security Community (ASC)aims to ensure that countries in the region live at _______ with one another and in a democratic and harmonious environment.
a. peace 	b. peaceful 	c. peacefully 	d. peaceable 
85.ASEAN's aims include the acceleration of economic growth, _______ progress, cultural, development among its members, and the promotion of regional peace.
a. society 	b. social 	c. socially 	d. socialize
86.A combined gross domestic _______ of the member countries of ASEAN has grown at an average rate of around 6% per year.
a. produce 	b. productivity 	c. production 	d. product 
87.The ASEAN Investment Area aims to enhance the competitiveness of the region for attracting direct investment which flows into and within ASEAN.
a. produce 	b. combine 	c. found 	d. improve
88. This story is incredible. You will hardly believe in it. 
	A. confusing 	B. interesting 	C. impressive 	D. unbelievable 
89. I recommend we adopt the title “An amazing love story” in stead of “The black man”.
	A. agree 	B. approve 	C. suggest 	D. wish 
90. “Let’s go to the movie now,’’ Oh!...............................................
 	a. Good idea! b. I don’t c. Why’s that? d. I need it. 
V.Fill in each numbered blank with one suitable word or phrase.
1.Rowing is a sport in which athletes race' against each other on river, lakes or on the ocean, (1) _____ on the type of race and the discipline. The boats are propelled by the reaction forces on the oar blades (2) _____ they are pushed against the water. The sport can be both recreational, focusing (3) _____ learning the techniques required, and competitive where overall fitness plays a large role. It is also one of (4) _____ oldest Olympic sports. In the United States, Australia and Canada, high school and collegial rowing is sometimes referred to as crew.
(5) _____ rowing, the athlete sits in the boat facing backwards, towards the stern, and uses the oars which are held in (6) _____ by the oarlocks to propel the boat forward, towards the bow. It is a demanding sport requiring strong core balance as well as physical (7) _____ and cardiovascular endurance.
Since the action of rowing (8) _____ fairly popular throughout the world, there are many different types of (9) _____. These include endurance races, time trials, stake racing, bumps racing, and the side-by-side format used in the Olympic Games. The many different formats are a result of the long (10) _____ of the sport, its development in. different regions of the world, and specific local requirements and restrictions. 
a. depending 	b. creating 	c. interesting 	d. carrying
a. but 	b. because	c. as 	d. as soon as
a. of 	b. on	c. with 	d. about
a. a 	b. an 	c. the 	d. Ø
a. Over 	b. Of 	c. During 	d. While
a. area 	b. sight 	c. part 	d. place
a. strong 	b. strongly 	c. strength 	d. strengthen
a. was become 	b. has become 	c. is become 	 	d. is becoming
a. competition 	b. examination 	c. test 	d. round
a. work 	b. history 	c. period 	d. race 
2. Nearly 200 of the 1500 native plant species in Hawaii are at risk of going extinct in the near future because they have been (1) _____ to such low numbers. Approximately 90 percent of Hawaii's plants are found nowhere else in the world but they are (2) _____ by alien invasive species such as feral goats, pigs, rodents and non- (3) _____ plants.
The Hawaii Rare Plant Restoration Group is striving to (4) _____ the extinction of the 182 rare Hawaiian plants with fewer than 50 individuals remaining in the (5) _____. Since 1990, (6) _____ a result of their 'Plant Extinction Prevention Program', sixteen species have been brought into (7) _____ and three species have been reintroduced. Invasive weeds have been removed in key areas and fencing put up in order to (8) _ plants in the wild.
In the future the Hawaii Rare Plant Restoration Program aims (49) _____ collecting genetic material from the remaining plants in the wild for storage as a safety net for the future. They also aim to manage wild populations and where possible reintroduce species into (50) _____
a. disappeared 	b. reduced 	c. increased 	d. developed
a. guarded 	b. invested 	c. conserved 	 	 d. threatened
a. nation 	b. native 	c. national 	d. nationally
a. prevent 	b. encourage 	c. stimulate 	d. influence
a. wild 	b. atmosphere 	c. hole 	d. sky
a. so 	b. due 	c. as 	d. but
a. contamination 	b. production 	c. cultivation 	d. generation
a. derive 	b. vary 	c. remain 	d. protect
a. at 	b. for 	c. with 	d. on
a. shelters 	b. reserves 	c. gardens 	d. halls
V.Sentence transformation.
A. REPORTED SPEECH
1. “Why hasn’t Peter phoned?” she wondered
She wondered.........................................
2. “If I were you, I wouldn’t trust David,” she told John
She advised ...............................
3. “I’m sorry that I broke the glass,” said Angela
Angela apologized ................................
4. “You were cheating,” said Carol to June.
Carol accused ................................
5. “Don’t forget to phone the office,” she told him.
She reminded .............................................................
6. “I did not steal the car,” he said. “I just borrowed it.”
He denied  but admitted 
7. “Shall we go to Paris for the weekend, John?” Mary asked
Mary suggested 
8. “Can you give me a ride to school”
He aske his friend.....................................................................................................................
B. PASSIVE VOICE
1. My mother made these curtains
These 
2. The police have just released John.
John ..
3. They believe he is mad.
He 
4. People say that he beats his wife
It is ..
5. It is believed that the man escaped in a stolen car
The man is ..
6. His parents made him study for his exams.
He was 
C. COMPARISONS
1. Sarah is better at Chemistry than Susan
Susan isn’t 
2. Sally is the cleverest student in the class.
Nobody ..
3. Our French exam was much easier than our German one
Our French exam was not .
4. As television programmes become more popular, they seem to get worse.
The more ..
5. I have never read such a romantic story
This ..
6.As he grows older, he becomes increasingly cheerful.
The older ....................................................................................................................
7.We sit near to the stage. We can see clearly.
The nearer ..................................................................................................................
8.I feel miserable when it is hot.
The hotter ...........................................................................................................................
9.We live far from our house. We miss it very much.
The farther ..................................................................................................
D. CONDITIONAL SENTENCES
1. I didn’t know that you were in hospital, so I didn’t visit you. 
	à If ..............................................................................................................................
2. Hurry up or you will be late.
	à If ...............................................................................................................................
3. She is very busy, so she can’t help me now. 
	à If ........................................................................................................................................
4. He didn’t phone me because he didn’t know my phone number. 
	à If ........................................................................................................................................
5. You’re unfit because you don’t take exercise.
	à If ...........................................................................................................................................
6. Unless you are careful, you will cut yourself with that knife.
	à If .....................................................................................................................................................
7. If I have time, I’ll help you.
	à Unless ...........................................................................................................................
8. He didn't study his lessons very carefully, so he gets bad marks now.
	à If ...............................................................................................................................................
E. PAST SIMPLE AND PRESENT PERFECT
1. John began playing the piano ten years ago
John has ..
2. She bought that house in 1990
She has 
3. They last visited me five years ago
They haven’t 
4. The last time it snowed here was six years ago
It ..
5. I haven’t been to a cricket match for years.
It’s 
6.It is the first time I have been to a flower show.
I haven’t .............................................................
7.I spent half an hour travelling to work by mortobike evryday.
It takes............................................................................................
8.It took him two hours to drive to London.
He spent..........................................................................................
Althought, Despite, Because, because of:
1. Although he was very tired, he managed to finish the marathon race.
In spite of...........................................................................................................................................
2. Although the play received good notices, not many people went to see it.
Despite..................................................................................................................
3. Mark went on working although he felt unwell. 
@	
4. They slept soundly although the night air was hot. 
@	
5 . Although she was successful, she felt dissatisfied. 
@	
6. Although the boat was full of water, it sailed on. 
@	
7. Although the children were poor, they seemed happy. 
@	
8. We couldn’t get tickets although we queued for an hour. 
@	
9. I enjoyed the film although the story was silly. 
@	
IV.Mark the letter A, B,C, or D on your answer sheet to indicate the words that is CLOSET in meaning to the undered words in each of the following questions.
Martin Luther King gained recognition for his use of nonviolent methods.
Earned	b. rejected	C. Enhanced	D. promoted
Modern commercila practice relies to a growing extend on arbitration to handle disputes.
Avoid	B. manage	C. Postpone	D. deal
Daniel Web applied the oratorical skill he had mastered as a lawyer to heighten his appeal for an end to slavery.
Intensify	B. convey	C. Retrieve	D. popularize
Great technological advances were made during the infancy of the United Stages’ industrial growth.
Zenith	B. expansion	C.beginning	D. recovery
Miraculously, he was unharmed after being hi by lightning.
Astonishingly	B. Crazily	C. Unfortunately	D. Certainly
He was delighted with the result of the experiment.
Satisfied	B. bored	C. Familiar	D. amazed
The bay has gradually deteriorated over the years.
Usually	B. steadily	C. Slowly	D. suddenly
Three was an inordinate lack of rain last fall.
Expansion	B.shortage	C. Decrease	D. abundance
The hue of the room gave it a warm feeling.
Color	B. atmosphere	C. Illustration	D. largeness
There are approximately 100 billion galaxies in the universe.
Nearly	B. exactly	C. Definitely	D. normally	
With the advent of computers, many tasks have been made easier.
Beginning	B. arrival	C. Disappearence	D. vanishing
Working abroad is appealing to many people.
Admirable	B. surprising	C. Alluring	D. lovable
Advanced scientific disciplines like solar cell technology and genetic engineering are exploding with possibilities.
Valued	B. celebrated	C. New	D. early	
The narrow, green- grey leaves of the sweet alyssum are untoothed and usually bear many silvery hair.
Carry	B. yield	C. Replace	D. hide
Fossil evidence confirms that the ancient cuttlefish has exist in its present form for more than 20 million years,
Proves	B. suggests	C. Clarifies	D. reveals.
V.Mark the letter A, B,C, or D on your answer sheet to indicate the words that is OPPOSITE in meaning to the undered words in each of the following questions.
1. We’d better speed up if we want to get to the concert in time
A. slow down	B. lie down	C. Put down	 D. turn down
2. Mrs Sullivan is a very generous lady. She has given most of her wealth to help homless people.
A. mean	B. filthy	C. Kind	D. hospitable
 3. His parents’ thoughtless comments made him very annoyed.
A. faithful	B. pleasant	C. Tolerate	D. thoughtful
4. The senator defended his opponent’s policies in a televised speech.
A. defeated	B. supported	C. Attacked	D. protected.
5. The company started seeing some success once they dismissed several employees.
A. discharged	B. hired	C. Accepted	D. disregarded	 
6. The laws restricting pollution in the city are very rigid.
A.stiff	B. flexible	C. Strict	D. tolerant.
7. Another benefit is the reduction of traffic noise, a serious issue in urban areas.
A. shortcoming	B. reward	C. Merit	D. damage
8. The reduction and possible elimination of waste tires may become a reality.
A. fulfilment	B. eradication	C. Formation	D. addition
9. There is growing attention about the way human being has destroyed the environment.
A. concern	B. ease	C. Attactiveness	D. unbias
10. Many students believe that doing voluntary work for charities is a pointless cause.
A. otiose	B. blunt	C. Eventful	D. worthwhile.

Tài liệu đính kèm:

  • docxbai_tap.docx