28. The Purple Mountain is a good place ______ _go) picnicking.

27. I hope it ______ (be) sunny tomorrow., because I ______ (visit) the great Wall.

26. When the teacher ______ (come) to the classroom yesterday, the students stopped ______ (talk).

25. Let’s ______ (meet) at the park gate.

24. When and where _____ we______ (meet)?

23. I want _____ (buy) a new car next year.

22. He wanted my help. So I ______ (stop) ______ (help) him.

21. How many students ______ (be) there in your class last term?

20. Where ______ (be) Tom last night?

19. I’d like my daughter ______ (be) a doctor.