用所给词的适当形式填空。

1. There               (be) many buildings in 10 years.

2. While I               (listen) to music, mother came back.

3. He does               (well) in swimming than I.

4. If it              (not rain), we'll go to the park tomorrow.

5. The old man makes a living by              (sell) fruits.

6. I don't think you are               (suppose) to smoke in the classroom.

7. The teacher told us the earth              (travel) round the sun.

8. It rained very hard. And it made a few drivers               (injure) in the race.

9. You are always              (kid). If you do the same thing again, I'll be angry.

10. It's not important              (finish) cleaning the house.