I. Choose the words whose main stressed syllable is placed differently from that of the other in each group. 1. A. distance B. unhappy C. different D. family 2. A.practice B. classmate C.complete D. answer 3. A.important B.partner C.dialogue D.pretty 4. A.question B.information C. invitation D.population 5. A.energy B.household C.student D.appliance 6. A.surprise B.sugar C. profession D.success 7. A.advance B.around C.industry D.imperial 8. A.natural B.national C.literature D.suggestion 9. A.charming B.champagne C.children D.charity 10. recognition B.temple C.tablet D.emperor 11. A.minor B.simple C.human D.agree 12. A.important B.recognize C.emotion D.computer 13. A.useful B.laundry C.express D.nothing 14. A. expression B.personal C.literature D.synthesis 15. A. station B.improve C.mobile D.robot Các bạn giúp mik voi 5 sao luôn