I. Choose the word that has main stress placed differently from the others: 1. A. unaffected B. undrinkable C. uncountable D. unsuitable 2. A. unpopular B. unorganized C. unfortunate D. unambitious 3. A. imperfect B. immatureC. immobile D. immoral 4. A. translator B. director C. editor/edit/ D. spectator 5. A. consumer B. performer C. shopkeeper D. believe 6. A. impair B. unhurt C. effect D. insect 7. A. explorer B. accurate C. unhealthy D. mature 8. A. unnatural B. engineering C. impossible D. environment 9. A. unhelpful B. unlikely C. unforeseen D. unusual 10. A. imprecise B. imperfect C. impartial D. impassive II. Find the word which has different stress pattern from the others . 1.A. person B. father C. teacher D. enjoy 2. A. prefer B. enjoy C. mother D. agree 3.A. doctor B. father C. picture D. fancy 4.A. pollution B. visit C. listen D. open 5.A. depend B. advise C. affect D. listen 6.A. affect B. father C. teacher D. picture 7. A. prefer B. enjoy C. mother D. affect 8.A. affect B. happen C. pollution D. fancy 9.A. pollution B. picture C. village D. factory 10.A. illustrate B. believe C. affect D. village Nhập tin nhắn...