1. nice, nicer
2. more exciting
3. to study
4. more quickly
5. the youngest 6. bigger
7. easier
8. the most beautiful
9. friendly, helpful
10. best
用括号内所给单词的适当形式填空。 1. This cake is very ________ (nice), but t
1. nice, nicer
2. more exciting
3. to study
4. more quickly
5. the youngest 6. bigger
7. easier
8. the most beautiful
9. friendly, helpful
10. best