11. When Kate came in, I _______ ( write) a letter.

10. Look at the dark clouds . It ______ (rain) soon.

9. We can use computers ___　 (send) messages.

8. Where’s Kate? She _____( go) to the library.

7. Thirty bikes___ (mend) by Uncle Wang last week.

6. The teacher ____(talk) to my father when I got home.

5. Young trees___(water) well every day.

4. They ___ (make) a lot of friends since they came to our city.

3. Tom! ___ (not do) it like that next time.

2. ----_____ you ____(see)the film?

　 ---Yes, I ____ (see) it two weeks ago.