Excercise 1: Chọn đáp án đúng để điền vào chỗ trống trong các câu sau. 1. He is ....... singer I’ve ever met. A. worse B. bad C. the worst D. badly 2. Mary is ....... responsible as Peter. A. more B. the most C. much D. as 3. It is ....... in the city than it is in the country. A. noisily B. more noisier C. noisier D. noisy 4. He sings ……….. among the singers I have known. A. the most beautiful B. the more beautiful C. the most beautifully D. the more beautifully 5. He is ....... student in my class. A. most hard-working B. more hard-working C. the most hard-working D. as hard-working 6. The English test was ....... than I thought it would be. A. the easier B. more easy C. easiest D. easier 7. Physics is thought to be ....... than Math. A. harder B. the more hard C. hardest D. the hardest 8. Jupiter is ....... planet in the solar system. A. the biggest B. the bigger C. bigger D. biggest 9. She runs …… in my class. A. the slowest B. the most slow C. the slowly D. the most slowly 10. My house is ....... hers. A. cheap than B. cheaper C. more cheap than D. cheaper than 11. Her office is ....... away than mine. A. father B . more far C. farther D. farer 12. Tom is ....... than David. A. handsome B. the more handsome C. more handsome D. the most handsome 13. She did the test ……….. I did. A. as bad as B. badder than C. more badly than D. worse than 14. A boat is ....... than a plane. A. slower B. slowest C. more slow D. more slower 15. Her new house is ....... than the old one. A. more comfortable B. comfortably C. more comfortabler D. comfortable 16. Her sister dances ……….. than me. A. gooder B. weller C. better D. more good 17. Her bedroom is ....... room in her house. A. tidier than B. the tidiest C. the most tidy D. more tidier 18. This road is ....... than that road. A. narrower B. narrow C. the most narrow D. more narrower 19. She drives ……. her brother. A. more careful than B. more carefully C. more carefully than D. as careful as 20. It was ....... day of the year. A. the colder B. the coldest C. coldest D.