用所给词的适当形式填空（每空一词）。

1. Dashan _______ (speak) Chinese quite well.

2. Mr  King _______ (teach) us English last term.

3. It _______ _______ (rain) outside.Please take this raincoat(雨衣) with you.

4. _______ you ever _______ (be) to London?

5. The homework must _______ _______ (do) by yourself.

6. I don't know the correct _______ (pronounce) of the word.

7. The growing population is one of the biggest _______ (challenge) of the

world today.

8. I think _______ (speak) English is more difficult than written English.

9. Don't be afraid of _______ (make) mistakes when you speak English.

10. _______ (use) such a _______ (fashion) mobile phone can make us look

good in front of others.