用所给词的适当形式填空。

1. Who _____ (have) a long ruler?

2. The children _____ (not play) football on the playground now.

3. _____ your sister often _____ (listen) to the radio?

4. Thank you for _____ (teach) us so well.

5. My father _____ (not have ) lunch in the factory.

6. Mike _____ (not do) his homework on Saturday.

7. Look! The boy _____ (fly) a kite in the field.

8. They _____ (work) on the farm next week.

9. I am clever but my brother is _____. (clever)

10. I have few friends but he has _____ (fewer) friends.