1. She 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. She sings ……….. among the singers I have known. A. the most beautiful B. the more beautiful C. the most beautifully D. the more beautifully 5. She is ....... student in my class. A. most hard-working B. more hard-working C. the most hard-working D. as hard-working Nhanh lên,ko cần giải thích