用所给动词的适当形式填空。

1. How often _____ your mother _____ (go)shopping?

2. Peter _____ (go) to watch the basketball match if he is free tomorrow.  

3. Linda _____ (visit) the Science Museum next Sunday.

4. Mr. Huang _____ (teach) us English two years ago.

5. Mr. Green _____ (live) in Beijing since he came to China.

6. The Kings _____ (watch) TV at this time last night.

7. Tony will come to my birthday party if it _____ (not rain) tomorrow.  

8. My cousin is a student and he _____ (study) at a middle school nearby.

9. My father _____ (be) to Beijing three times this year.

10. Listen! Who _____ (play) the piano in the next room?