9. *It’s going to rain. These things must ________ (take) into a house at once.

8. **How long ________ (spend) in building this bridge last year?

7. Do you believe that nice picture ________ (draw) by a little girl?

6. ----Your city looks beautiful!

　 ----Yes. Lots of trees and grass ________ (plant) last year.

5. Daniel will play with us as soon as he __________(finish) his homework.

4. Mr. Dong ___________(live) here since he was born.

3. While we _________(clap) our hands, he came in.

2. -Hey! How do you like the city of Rugao?

-It’s beautiful! I like the food here and I _____(stay) here for another week.

1. -What’s that noise? -Jane and her sister _________(watch) TV.

19. change the channel ______________　 20. 教某人怎样做某事 _________________