Exercise 1: Pick out the word whose stressed syllable is different from the of the others 1. A. reserve B. crowded C. support 2. A. solution B. mischievous C. family 3. A. priority B. diversity C. variety 4. A. precede 5. A. documentary B. altar C. confide B. economy C. Population 6. A. graduation B. contribution C. economic 7. A. certain B. couple C. decide D. majority D. equal D. suppose D. demonstration 8. A. verbal B. precede C. discuss D. secure D. leftovers D. generation D. oblige 9. A. experience B. suitable 10. A. certificate B. application C. concentrate D. comment 11. A. experience B. technology C. enthusiasm D. responsible C. environment D. optimistic

12. It's hard work looking three children all day . A. after B. up C. to D. through 13. When my mother is busy preparing dinner , my father gives a hand tidying the living room often . A. on B. with C. for D. about 14. She is never willing __ any personal question . A. answer B. to answer C. answering D. answered 15. The fox tries to reach the fruit high up the tree . A. in fail B. in vain C. in lose D. in hope 16. The attitude of experts the execution of endomyocardial biopsy at ARVD is contradictory . A. towards B. above C. underneath D. with 17. As she out , she ___ sight of herself in the mirror . A. talked B. took C. saw D. caught 18. We have bought extra food_our friends stay to dinner . A. if only B. whether C. in case D. only when 19. If you want to get better , do exactly your doctor tells you . A. like B. the same C. as D. alike 20. I haven't seen him for months . A. It's months since I last saw him . B. It's months when I last saw him . C. It's months before I last saw him . D. It's months after I last saw him . 21. I would rather at than quarrel with him . A. laugh B. laughing C. be laughed D. to be laughed 22. She working on that manuscript for 2 years now . A. will be B. has been Chad been D. is 23.1 there once a long time ago and back since A. went / have not been B. go / am not have gone / was D. was going / had not been 24. She trying to pass her driving test but fails every time . A. keep B. is keeping Chad kept D. keeps 25.1 complete silence now while I try this experiment . A. am wanting B. wanted C. did want D. have 26. In the 19th century , it - two or three months to cross North America by covered wagon . A took B. had taken C. had taken D. was taking

Lm giúp e các câu dưới đây. Có mấy câu cần giải thích,giải thích giúp e với nha. Dạ e cảm ơn

Các thầy cô giúp e vs, e khá dở lý ạ

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