Bài 1: Chọn đáp án đúng để điền vào chỗ trống trong các cầu sau. 1. She is singer I've ever met. A. worse B. bad 2. Mary is ........ responsible as Peter. A. more B. the most 3. It is ....... in the city than it is in the country. A. noisily B. more noisier 4. She sings among the singers I have known. A. the most beautiful B. the more beautiful C. the most beautifully D. the more beautifully C. the worst than Math. C. much C. noisier D. badly D. as D. noisy 5. She 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