根据首字母提示及句意填入适当的单词。

1. I l_____ an English-Chinese dictionary to Jim, but he didn't return it to me.

2. You must h_____ in your homework on time or the teacher may be angry.

3. The Yellow River is the second l_____ river in China.

4. The boy is not old enough to d_____ himself.

5. What a wonderful m_____ Liu Qian performed!

6. I w_____ what you were doing just now.

7. F_____ vegetables and fruits are good for your health.

8. Be careful! Everyone should obey the r_____.

9. Don't p_____ your cars here, look at the sign.

10. The hurt leg t_____ Liu Xiang a lot last year.