用所给词的适当形式填空。

1. Tom's brother ___________ (fall) down the stairs yesterday.

2. Her sister and brother never ___________ (go) to bed before 10: 00 pm.

3. Can he ___________ (play) basketball very well?

4. She ___________ (look) hungry, so her mother ___________ (give) her some food an hour ago.

5. ___________ (not) go to bed too late.

6. She isn't going to ___________ (read) in bed.

7. This school begins ___________ (class) at 7: 45.

8. Simon ___________ (answer) the phone now.

9. The children are ___________ (make) the paper boats.