1. I___________ (teach) here for ten years since I finished school.

2. Would you mind me __________ (use) your bike?

3. The students of Class Two___________ (sweep) their classroom now.

4. The Whites____________ (not listen) to the radio at that time.

5. It's better to give than__________ (receive).

6. How long ______you_______ (live) in this town?

7. You _______ (come) here last year, ______ you?

8. ----When ______ you______ (see) him?
----I______ (see) him last Sunday.

9. She said that the car___________ (use) the next week.

10. I didn't know what __________ (happen) to China in a century.

11. When I got to the station, the train ____ already ______ (leave).

12. The stone bridge______________ (build) in our hometown for ten years.

13. The desk must ______ (clean) once a day.

14. The dog _________ (lie) on the floor when I came in..

15. It _________(rain) heavily when I got home.

16. Her mother____________ (cook) at this time yesterday.

17. The students _____________ (do) their homework.   __________ (not make) any noise!

18. ----______ you ever_______ (be) to Beijing?  ----Yes. I________ (go) there last week.

19. He'll telephone us as soon as he _________ (arrive) there.

20. Jiefang trucks____________ (make) in Changchun.

21. A pen is used for__________ (write).

22. All that must ________ (do).

23 .My friend can't decide which pair of trousers____________ (choose). So she asked me to go shopping with her.

24. They find it useful__________ (learn) English.

25. The old man often_________ (tell) the children a story in the evening. This evening he ________ (tell) two stories.