用动词的适当形式填空。

1. The best way             (improve) your English is to join an English club.

2. I              (not understand) the problem until he explained it.

3. I’m sorry for              (make) so much noise.

4. Tom is an honest boy. He always _____________(tell) the truth.

5. Mom _____________(add) salt but it still wasn’t salty enough.

6. If I _____________(give) five more minutes, I would get everything ready.

7. In the last three months, we ___________(learn) more than 1000 English words.

8. Be sure _____(not miss) the early bus tomorrow.

9. I _______(do) it in a minutes.

10. I think we should give them a warm home ,and ____________________(not hurt) them.