400 Câu bài tập phát âm cực hay (Có đáp án)

 >> Truy cập trang  để học Toán – Lý – Hóa – Sinh – Văn – Anh – Sử - Địa tốt nhất! 1 
400 CÂU BÀI TẬP PHÁT ÂM CỰC HAY – CÓ ĐÁP ÁN 
Chọn từ có âm tiết được gạch chân có phát âm khác với những từ còn lại 
Exercise 1 
1. A. rough B. sum C. utter D. union 
2. A. noon B. tool C. blood D. spoon 
3. A. chemist B. chicken C. church D. century 
4. A. thought B. tough C. taught D. bought 
5. A. pleasure B. heat C. meat D. feed 
6. A. chalk B. champagne C. machine D. ship 
7. A. knit B. hide C. tide D. fly 
8. A. put B. could C. push D. moon 
9. A. how B. town C. power D. slow 
10. A. talked B. naked C. asked D. liked 
Exercise 2 
1. A. hear B. clear C. bear D. ear 
2. A. heat B. great C. beat D. break 
3. A. blood B. pool C. food D. tool 
4. A. university B. unique C. unit D. undo 
5. A. mouse B. could C. would D. put 
6. A. faithful B. failure C. fairly D. fainted 
7. A. course B. court C. pour D. courage 
8. A. worked B. stopped C. forced D. wanted 
9. A. new B. sew C. few D. nephew 
10. A. sun B. sure C. success D. sort 
Exercise 3 
1. A. month B. much C. come D. home 
2. A. wood B. food C. look D. foot 
3. A. post B. though C. how D. clothes 
4. A. beard B. bird C. learn D. turn 
5. A. false B. laugh C. glass D. after 
6. A. camp B. lamp C. cupboard D. apart 
7. A. genetics B. generate C. kennel D. gentle 
8. A. cleanse B. please C. treat D. retreat 
9. A. mechanic B. machinery C. chemist D. cholera 
10. A. thank B. band C. complain D. insert 
Exercise 4 
1. A. grammar B. damage C. mammal D. drama 
2. A. both B. tenth C. myth D. with 
3. A. gate B. gem C. gaze D. gaudy 
4. A. thus B. thumb C. sympathy D. then 
 >> Truy cập trang  để học Toán – Lý – Hóa – Sinh – Văn – Anh – Sử - Địa tốt nhất! 2 
5. A. lays B. says C. stays D. plays 
6. A. scholarship B. chaos C. cherish D. chorus 
7. A. sign B. minor C. rival D. trivial 
8. A. message B. privilege C. college D. collage 
9. A. beard B. rehearse C. hearsay D.endearment 
10. A. dynamic B. typical C. cynicism D. hypocrite 
Exercise 5 
1. A. candy B.sandy C. many D. handy 
2. A. earning B. learning C. searching D. clearing 
3. A. waited B. mended C. naked D. faced 
4. A. given B. risen C. ridden D. whiten 
5. A. cough B. tough C. rough D. enough 
6. A. accident B. jazz C. stamps D. watch 
7. A. this B. thick C. maths D. thin 
8. A. gas B. gain C. germ D. goods 
9. A. bought B. nought C. plough D. thought 
10. A. spear B. gear C. fear D. pear 
Exercise 6 
1. A. pudding B. put C. pull D. puncture 
2. A. absent B. recent C. decent D. present 
3. A. promise B. devise C. surprise D. realise 
4. A. liable B. livid C. revival D. final 
5. A. houses B. faces C. horses D. places 
6. A. bush B. brush C. bus D. cup 
7. A. boat B. broad C. coast D. alone 
8. A. large B. vegetable C. angry D. gem 
9. A. more B. north C. lost D. water 
10. A. distribute B. tribe C. triangle D. trial 
Exercise 7 
1. A. food B. look C. took D. good 
2. A. luggage B. fragile C. general D. bargain 
3. A. nourish B. flourish C. courageous D. southern 
4. A. naked B. sacred C. needed D. walked 
5. A. walk B. wash C. on D. not 
6. A. eight B. freight C. height D. weight 
7. A. curriculum B. coincide C. currency D. conception 
8. A. divisible B. design C. disease D. excursion 
9. A. rather B. sacrifice C. hard D. father 
10. A. hair B. stairs C. heir D. aisle 
Exercise 8 
1. A. evening B. key C. envelope D. secret 
2. A. light B. fine C. knife D. principle 
3. A. farm B. card C. bare D. marvelous 
 >> Truy cập trang  để học Toán – Lý – Hóa – Sinh – Văn – Anh – Sử - Địa tốt nhất! 3 
4. A. both B. bottle C. Scotland D. cotton 
5. A. park B. farm C. warm D. marmalade 
6. A. nature B. pure C. picture D. culture 
7. A. faithful B. failure C. fairly D. painted 
8. A. country B. cover C. economical D. ceiling 
9. A. new B. sew C. few D. nephew 
10. A. with B. library C. willing D. if 
Exercise 9 
1. A. this B. there C. breathe D. breath 
2. A. ask B. angry C. manager D. damage 
3. A. notebook B. hoping C. cock D. potato 
4. A. engineer B. verb C. deer D. merely 
5. A. dam B. planning C. plane D. candle 
6. A. theory B. therefore C. neither D. weather 
7. A. shoot B. mood C. poor D. smooth 
8. A. seat B. heavy C. reason D. neat 
9. A. kissed B. helped C. forced D. wanted 
10. A. barn B. can't C. aunt D. tame 
Exercise 10 
1. A. purity B. burning C. cure D. durable 
2. A. see B seen C. sportsman D. sure 
3. A. pull B. sugar C. plural D. study 
4. A. course B. court C. courage D. cough 
5. A. bark B. share C. dare D. bare 
6. A. cotton B. bottle C. cold D. common 
7. A. dear B. hear C. bear D. clear 
8. A. bury B. curtain C. burn D. turn 
9. A. folk B. work C. pork D. corn 
10. A. shout B. sugar C. share D. surgery 
Exercise 11 
1. A. pool B. moon C. food D. foot 
2. A. naked B. beloved C. helped D. wicked 
3. A. fatal B. favour C. fathom D. famous 
4. A. tomb B. comb C. dome D. home 
5. A. myth B. with C. both D. tenth 
6. A. south B. truth C. smooth D. both 
7. A. ticked B. checked C. booked D. naked 
8. A. chorus B. cherish C. chaos D. scholar 
9. A. chain B. entertain C. bargain D. complain 
10. A. food B. blood C. soon D. moon 
Exercise 12 
1. A. about B. amount C. should D. ground 
 >> Truy cập trang  để học Toán – Lý – Hóa – Sinh – Văn – Anh – Sử - Địa tốt nhất! 4 
2. A. saddle B. case C. chase D. basement 
3. A. drummer B. future C. number D. umbrella 
4. A. flame B. fame C. came D. manner 
5. A. darkness B. warmth C. market D. remark 
6. A. hunt B. pullover C. under D. funny 
7. A. book B. floor C. hook D. cooker 
8. A. figure B. bright C. fight D. sight 
9. A. over B. rose C. cover D. chosen 
10. A. baggage B. village C. manage D. stage 
Exercise 13 
1. A. butter B. put C. sugar D. push 
2. A. few B. new C. threw D. knew 
3. A. pretty B. get C. send D. well 
4. A. grew B. threw C. knew D. flew 
5. A. close B. chose C. lose D. rose 
6. A. beard B. fur C. search D. prefer 
7. A. are B. fair C. there D. wear 
8. A. reliable B. living C. revival D. final 
9. A. hasty B. nasty C. tasty D. wastage 
10. A. bead B. read C. dead D. recede 
Exercise 14 
1. A. nature B. change C. gravity D. basis 
2. A. discipline B. vision C. cylinder D. muscle 
3. A. office B. promise C. service D. expertise 
4. A. suitable B. biscuit C. guilty D. building 
5. A. patient B. crescent C. ancient D. machine 
6. A. physical B. mythology C. rhythmic D. psychology 
7. A. bury B. friendly C. pretty D. pleasant 
8. A. chorus B. cherish C. chaos D. scholarship 
9. A. creature B. decent C. league D. menace 
10. A. danger B. angel C. anger D. magic 
Exercise 15 
1. A. pleasure B. sound C. same D. best 
2. A. foot B. pool C. moon D. food 
3. A. birth B. their C. myth D. fifth 
4. A. trays B. says C. bays D. days 
5. A. companion B. company C. comparison D. compartment 
6. A. naked B. wicked C. beloved D. confused 
7. A. plumber B. doubt C. debt D. herbage 
8. A. clothes B. gone C. drove D. ghost 
9. A. hear B. clear C. swear D. ear 
10. A. heat B. great C. beat D. beak 
 >> Truy cập trang  để học Toán – Lý – Hóa – Sinh – Văn – Anh – Sử - Địa tốt nhất! 5 
Exercise 16 
1. A. book B. put C. brook D. booth 
2. A. orchestra B. chasm C. chemical D. orchard 
3. A. prescription B. preliminary C. presumption D. preparation 
4. A. nourish B. flourish C. tournament D. courage 
5. A. pudding B. puncture C. put D. cushion 
6. A. breathe B. teeth C. though D. there 
7. A. describe B. excite C. timber D. dive 
8. A. slaughter B. draught C. naughty D. plaudit 
9. A. devotion B. congestion C. suggestion D. question 
10. A. copper B. copy C. dolphin D. colonel 
Exercise 17 
1. A. bought B. daughter C. cough D. sight 
2. A. sure B. soup C. sugar D. machine 
3. A. but B. bury C. nut D. young 
4. A. measure B. decision C. permission D. pleasure 
5. A. lose B. chose C. close D. dose 
6. A. position B. oasis C. desert D. resort 
7. A. stone B. zone C. phone D. none 
8. A. give B. five C. hive D. dive 
9. A. switch B. stomach C. match D. catch 
10. A. study B. ready C. puppy D. occupy 
Exercise 18 
1. A. reliable B. liquid C. revival D. final 
2. A. houses B. faces C. horses D. places 
3. A. pudding B. put C. pull D. puncture 
4. A. sovereign B. fountain C. determine D. routine 
5. A. beard B. word C. heard D. third 
6. A. ghost B. hostage C. lost D. frosty 
7. A. chorus B. cherish C. chaos D. scholar 
8. A. measure B. pleasure C. treasure D. ensure 
9. A. mouse B. could C. would D. put 
10. A. three B. thanks C. think D. farther 
Exercise 19 
1. A. university B. unique C. unit D. undo 
2. A. divisible B. design C. disease D. decision 
3. A. 
superstructure 
 B. apartheid C. virtually D. statute 
4. A. wealth B. cloth C. with D. marathon 
5. A. puzzle B. security C. skull D. productive 
6. A. apprentice B. appreciation C. botanist D. diagram 
7. A. emblem B. electrification C. exact D. entire 
8. A. curriculum B. coincide C. currency D. conception 
 >> Truy cập trang  để học Toán – Lý – Hóa – Sinh – Văn – Anh – Sử - Địa tốt nhất! 6 
9. A. locate B. patriotic C. orator D. poverty 
10. A. genuine B. geneticist C. guarantee D. generate 
Exercise 20 
1. A. lively B. kite C. driven D. bite 
2. A. sale B. band C. sand D. tan 
3. A. started B. looked C. decided D. coincided 
4. A. blow B. show C. hole D. cow 
5. A. sung B. supper C. supply D. nun 
6. A. mule B. mug C. mud D. multiply 
7. A. cats B. tapes C. lives D. cooks 
8. A. ground B. should C. about D. amount 
9. A. weather B. bread C. ahead D. mean 
10. A. author B. other C. there D. breathe 
Exercise 21 
1. A. enough B. rough C. laugh D. though 
2. A. stage B. village C. manage D. package 
3. A. license B. combine C. seaside D. police 
4. A. some B. done C. once D. home 
5. A. not B. nobody C. wrote D. spoken 
6. A. before B. born C. work D. boring 
7. A. bee B. beer C. seem D. flee 
8. A. peach B. teach C. measure D. meat 
9. A. sound B. touch C. down D. account 
10. A. design B. preserve C. basic D. physical 
Exercise 22 
1. A. path B. tooth C. theme D. Thames 
2. A. sound B. amount C. country D. noun 
3. A. climbing B. basket C. subway D. club 
4. A. problem B. popular C. convenient D. rod 
5. A. rose B. house C. mouse D. practice 
6. A. agreed B. missed C. liked D. watched 
7. A. rear B. dear C. bear D. fear 
8. A. guide B. driven C. twice D. shine 
9. A. hear B. clear C. pear D. fear 
10. A. punctual B. rubbish C. thunder D. furious 
Exercise 23 
1. A. ache B. chaos C. charity D. archaeology 
2. A. chair B. cheap C. chorus D. child 
3. A. cash B. fact C. wash D. stamp 
4. A. latitude B. saturate C. fathom D. famous 
5. A. nourish B. flourish C. southern D. courageous 
6. A. measure B. please C. bees D. roses 
 >> Truy cập trang  để học Toán – Lý – Hóa – Sinh – Văn – Anh – Sử - Địa tốt nhất! 7 
7. A. high B. horn C. home D. hour 
8. A. dose B. house C. mouse D. practise 
9. A. close B. both C. dozen D. so 
10. A. dubbing B. robot C. climbing D. sober 
Exercise 24 
1. A. feather B. leather C. feature D. measure 
2. A. practising B. amusing C. advertising D. arising 
3. A. geology B. psychology C. classify D. photography 
4. A. walks B. begins C. helps D. cuts 
5. A. idiom B. ideal C. item D. identical 
6. A. blow B. show C. hole D. cow 
7. A. sung B. supper C. supply D. nun 
8. A. mule B. mug C. mud D. multiply 
9. A. cats B. tapes C. lives D. cooks 
10. A. ground B. should C. about D. amount 
Exercise 25 
1. A. wild B. driven C. alive D. sign 
2. A. sword B. word C. bird D. heard 
3. A. penalty B. scenic C. epidemic D. level 
4. A. practiced B. raised C. rained D. followed 
5. A. head B. heat C. seat D. need 
6. A. food B. look C. took D. good 
7. A. sure B. sight C. sing D. same 
8. A. nourish B. flourish C. courageous D. southern 
9. A. naked B. sacred C. needed D. walked 
10. A. chooses B. houses C. rises D. horses 
Exercise 26 
1. A. hour B. honest C. heir D. hospital 
2. A. dealt B. dreamt C. heal D. jealous 
3. A. slogan B. motor C. total D. proper 
4. A. sugar B. cassette C. fashion D. passion 
5. A. allow B. doubt C. bought D. scout 
6. A. laugh B. plough C. enough D. cough 
7. A. thank B. thanks C. thin D. father 
8. A. Valentine B. imagine C. discipline D. magazine 
9. A. here B. mere C. there D. herein 
10. A. corn B. cup C. can D. cede 
Exercise 27 
1. A. disease B. display C. increase D. discount 
2. A. examine B. famine C. determine D. miner 
3. A. descend B. decent C. delicious D. percentage 
4. A. knowledge B. flower C. shower D. coward 
 >> Truy cập trang  để học Toán – Lý – Hóa – Sinh – Văn – Anh – Sử - Địa tốt nhất! 8 
5. A. thrill B. third C. enthusiasm D. thus 
6. A. practice B. device C. service D. office 
7. A. complete B. command C. common D. community 
8. A. release B. pleasure C. leaver D. creamy 
9. A. explanation B. main C. faint D. paint 
10. A. power B. tower C. flow D. flour 
Exercise 28 
1. A. most B. cost C. coast D. host 
2. A. hear B. near C. beer D. bear 
3. A. south B. brown C. soup D. house 
4. A. mechanic B. chemistry C. charge D. campus 
5. A. tilt B. tight C. shine D. guide 
6. A. bus B. bury C. up D. nut 
7. A. head B. heat C. seat D. need 
8. A. five B. physics C. effort D. pen 
9. A. measure B. please C. his D. disease 
10. A. chin B. chaos C. child D. charge 
Exercise 29 
1. A. watch B. want C. bank D. what 
2. A. low B. bow C. know D. slow 
3. A. issue B. passion C. tissue D. vessel 
4. A. hasty B. nasty C. tasty D. wastage 
5. A. dew B. knew C. sew D. few 
6. A. home B. tomb C. comb D. dome 
7. A. says B. bays C. days D. rays 
8. A. none B. tomb C. tongue D. onion 
9. A. companion B. comparison C. company D. compartment 
10. A. loose B. lose C. cease D. dose 
Exercise 30 
1. A. danger B. eager C. dagger D. lager 
2. A. comb B. plumb C. climb D. disturb 
3. A. dead B. bead C. thread D. bread 
4. A. garlic B. garden C. garage D. garbage 
5. A. host B. cost C. post D. most 
6. A. seize B. neigh C. beige D. reign 
7. A. honour B. honest C. honey D. heir 
8. A. germ B. gesture C. gene D. gear 
9. A. shortage B. collage C carriage D. manage 
10. A. soul B. mould C. foul D. shoulder 
Exercise 31 
1. A. afterwards B. advise C. agree D. allow 
2. A. gear B. beard C. pear D. dear 
 >> Truy cập trang  để học Toán – Lý – Hóa – Sinh – Văn – Anh – Sử - Địa tốt nhất! 9 
3. A. find B. bite C. since D. drive 
4. A. took B. book C. shoe D. would 
5. A. breath B. breathe C. thank D. threat 
6. A. turn B. burn C. curtain D. bury 
7. A. massage B. carriage C. voyage D. dosage 
8. A. chemist B. champagne C. chaos D. chiropodist 
9. A. chair B. cheap C. chorus D. child 
10. A. though B. comb C. only D. gone 
Exercise 32 
1. A. comfort B. hobby C. knowledge D. popular 
2. A. about B. bough C. cough D. shout 
3. A. hood B. hook C. stood D. tool 
4. A. done B. gone C. mum D. won 
5. A. coup B. group C. soup D. tough 
6. A. filled B. landed C. suited D. wicked 
7. A. cloth B. clothe C. with D. without 
8. A. cease B. chase C. increase D. raise 
9. A. beds B. doors C. students D. plays 
10. A. gypsy B. huge C. piggy D. strange 
Exercise 33 
1. A. sergeant B. servant C. service D. servile 
2. A. fond B. off C. follow D. honey 
3. A. myth B. with C. both D. tenth 
4. A. eight B. weight C. heighten D. freight 
5. A. wool B. wood C. full D. truth 
6. A. lever B. level C. lesson D. length 
7. A. please B. measure C. bees D. roses 
8. A. corner B. drawing C. autumn D. operate 
9. A. butcher B. good C. flood D. foot 
10. A. beard B. near C. beer D. bear 
Exercise 34 
1. A. half B. all C. bath D. start 
2. A. there B. appear C. wear D. prepare 
3. A. fan B. bad C. catch D. wash 
4. A. prefer B. better C. worker D. teacher 
5. A. month B. boss C. shop D. got 
6. A. wine B. kite C. live D. fine 
7. A. chancellor B. character C. challenger D. chapter 
8. A. cell B. centre C. city D. cube 
9. A. poor B. moor C. door D. boor 
10. A. though B. enough C. cough D. rough 
Exercise 35 
 >> Truy cập trang  để học Toán – Lý – Hóa – Sinh – Văn – Anh – Sử - Địa tốt nhất! 10 
1. A. balloon B. blood C. blue D. zoo 
2. A. complete B. engine C. heavy D. many 
3. A. clown B. cow C. plough D. tough 
4. A. breathe B. breath C. myth D. thigh 
5. A. houses B. measure C. please D. reason 
6. A. bear B. hear C. pear D. share 
7. A. comb B. come C. dome D. home 
8. A. boot B. food C. shoot D. soot 
9. A. cheese B. choice C. chord D. chunk 
10. A. caused B. increased C. practised D. promised 
Exercise 36 
1. A. wrong B. coat C. lock D. watch 
2. A. boat B. wrote C. know D. top 
3. A. mean B. said C. friend D. bread 
4. A. much B. stuff C. could D. none 
5. A. suit B. two C. owe D. roof 
6. A. gave B. have C. same D. cake 
7. A. arm B. tall C. caught D. walk 
8. A. bread B. well C. death D. lied 
9. A. wood B. put C. cut D. look 
10. A. tie B. weight C. height D. buy 
Exercise 37 
1. A. master B. ask C. aspect D. castle 
2. A. meat B. bread C. each D. dream 
3. A. corn B. cede C. can D. cup 
4. A. promise B. devise C. surprise D. realise 
5. A. hurt B. circle C. square D. word 
6. A. thin B. than C. they D. there 
7. A. ache B. charity C. archaeology D. chaos 
8. A. storage B. encourage C. garage D. shortage 
9. A. whole B. whoop C. whose D. white 
10. A. bound B. ground C. bounce D. cough 
Exercise 38 
1. A. lazy B. lapel C. label D. labourer 
2. A. while B. which C. who D. white 
3. A. come B. roll C. comb D. grow 
4. A. blood B. prove C. rude D. souvenir 
5. A. hour B. honest C. heir D. hospital 
6. A. dealt B. dreamt C. heal D. jealous 
7. A. foul B. brooch C. soul D. foal 
8. A. colonel B. journal C. infernal D. mournful 
9. A. taught B. laughter C. naughty D. slaughter 
10. A. umbrella B. union C. usage D. university 
 >> Truy cập trang  để học Toán – Lý – Hóa – Sinh – Văn – Anh – Sử - Địa tốt nhất! 11 
Exercise 39 
1. A. cat B. bag C. late D. ran 
2. A. weasel B. breakfast C. feather D. measure 
3. A. coward B. flower C. shower D. knowledge 
4. A. chorus B. cherish C. chaos D. scholarship 
5. A. worry B. hurry C. sorry D. curry 
6. A. build B. child C. wild D. mild 
7. A. pub B. club C. climb D. sob 
8. A. cost B. bore C. course D. tall 
9. A. thirteen B. thanks C. think D. father 
10. A. practice B. device C. service D. office 
Exercise 40 
1. A. butter B. put C. sugar D. push 
2. A. great B. bread C. break D. steak 
3. A. weight B. height C. eight D. vein 
4. A. too B. food C. soon D. good 
5. A. would B. about C. round D. out 
6. A. enough B. cough C. though D. rough 
7. A. few B. sew C. knew D. new 
8. A. chooses B. houses C. rises D. horses 
9. A. suit B. seven C. sugar D. sun 
10. A. accurate B. accept C. accident D. success 
KEYS 
EX 1 
 1d 2c 3a 4b 5a 6a 7a 8d 9d 10b 
EX 2 
 1c 2b 3a 4d 5a 6c 7d 8d 9b 10b 
EX 3 
 1d 2b 3c 4a 5a 6c 7a 8a 9b 10a 
EX 4 
 1d 2d 3b 4d 5b 6c 7d 8d 9b 10a 
EX 5 
 1c 2d 3d 4d 5a 6d 7a 8c 9c 10d 
EX 6 
 1d 2d 3a 4b 5a 6a 7b 8c 9c 10a 
EX 7 
 1a 2d 3c 4d 5a 6c 7d 8d 9b 10d 
EX 8 
 1c 2d 3c 4d 5c 6b 7c 8d 9b 10b 
EX 9 
 1d 2a 3c 4b 5c 6a 7c 8b 9d 10d 
 >> Truy cập trang  để học Toán – Lý – Hóa – Sinh – Văn – Anh – Sử - Địa tốt nhất! 12 
EX 10 
 1b 2d 3d 4c 5a 6c 7c 8a 9b 10d 
EX 11 
 1d 2c 3c 4a 5b 6c 7d 8b 9c 10b 
EX 12 
 1c 2a 3b 4d 5b 6b 7b 8a 9c 10d 
EX 13 
 1a 2c 3a 4c 5c 6a 7a 8b 9b 10c 
EX 14 
 1c 2b 3d 4a 5b 6d 7c 8b 9d 10c 
EX 15 
 1a 2a 3b 4b 5b 6d 7d 8b 9c 10b 
EX 16 
 1d 2d 3d 4c 5b 6b 7c 8b 9d 10d 
EX 17 
 1c 2b 3b 4c 5a 6b 7d 8a 9b 10d 
EX 18 
 1b 2a 3d 4b 5a 6a 7b 8d 9a 10d 
EX 19 
 1d 2d 3b 4c 5b 6d 7a 8c 9a 10c 
EX 20 
 1c 2a 3b 4d 5c 6a 7c 8b 9d 10a 
EX 21 
 1d 2a 3d 4d 5a 6c 7b 8c 9b 10c 
EX 22 
 1d 2c 3a 4c 5a 6a 7c 8b 9c 10d 
EX 23 
 1c 2c 3c 4d 5d 6a 7d 8a 9c 10c 
EX 24 
 1c 2a 3c 4b 5a 6d 7c 8a 9c 10b 
EX 25 
 1b 2a 3b 4a 5a 6a 7a 8c 9d 10d 
EX 26 
 1d 2c 3d 4b 5c 6b 7d 8a 9c 10d 
EX 27 
 1a 2d 3c 4a 5d 6b 7c 8b 9a 10c 
EX 28 
 1b 2d 3c 4c 5a 6b 7a 8d 9a 10b 
EX 29 
 1c 2b 3d 4b 5c 6b 7a 8b 9c 10a 
EX 30 
 1a 2d 3b 4c 5b 6a 7c 8d 9b 10c 
EX 31 
 1a 2c 3c 4c 5b 6d 7a 8b 9c 10d 
EX 32 
 1a 2c 3d 4b 5d 6a 7a 8b 9c 10c 
 >> Truy cập trang  để học Toán – Lý – Hóa – Sinh – Văn – Anh – Sử - Địa tốt nhất! 13 
EX 33 
 1a 2d 3b 4c 5d 6a 7b 8d 9c 10d 
EX 34 
 1b 2b 3d 4a 5a 6c 7b 8d 9c 10a 
EX 35 
 1b 2a 3d 4a 5b 6b 7b 8d 9c 10c 
EX 36 
 1b 2d 3a 4c 5c 6b 7a 8d 9c 10b 
EX 37 
 1c 2b 3b 4a 5c 6a 7b 8c 9d 10d 
EX 38 
 1b 2c 3a 4a 5d 6c 7a 8d 9b 10a 
EX 39 
 1c 2a 3d 4b 5c 6a 7c 8a 9d 10b 
EX 40 
 1a 2b 3b 4d 5a 6c 7b 8d 9c 10a