用所给词的正确形式填空。
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, cleverer)
10. I have few friends but he has friends. (fewer, few)