根据所给词的适当形式填空。

1. Yuquan is my favorite ______ (music) group.

2. Hong Kong is in the ______  (south) part of China.

3. These ______  (perform) sing very well. We lost ourselves in their songs.

4. Man can't live ______  (with) air or water.

5. Who do you think is the ______  (friendly), Jim or Tom?

6. She ______  (watch) a pretty ______ (excited) soccer game last week, today she watched

    a much ______ (exciting) game than that.

7. Because of ______  (study) hard, we are ______ (success).

8. I ______ (not go) to work so ______ (earlier) as Mary the day before yesterday.

9. Yesterday I ______ (not feel) well, today I am feeling ______ (well) than yesterday.

10. If you do more sports, you will be ______ (healthy) soon.