词形变换。

1. If you work hard, you'll___________(success) in the exams.

2. Thank you very much for giving us some___________(value) advice.

3. One of my__________(hobby) is to collect stamps.

4. You must give up__________(play) computer games, or you'll fail in the exam.

5. He often___________(quarrel) with his wife about housework.

6. When you have problems, you'd better write a letter to your best friend about how_________(deal)

with these problems.

7. I read about one of his__________(article) on__________(teen) problems in the newspaper.

8. From his words, we draw the ________(conclude) that he was lying to us.

9. It's ________(polite) to laugh at the disabled persons.

10. Why not _______(send) an e-mail to her instead of ________(reply) to her letter?