31.(　　 )A:____does it take you to walk to sc hool?　 B:About ten minutes.

A. How far　　　 　 B. When 　　　　　　　　　　 C.How long　 D. How often

30. Thanks for 　　　　　(invite) me to the party.

29. We’re going to help those 　　　　(tour) who can’t speak Chinese.

28. She’s learning the violin, she wants to be a 　　　　(violin).

27. I went to his house, but he 　　　　(be not) in.

26. Let’s 　　(go) for a drive, OK?

25. The baby is crying. Who can make him 　　　　(stop) to laugh?

24. I 　　　(sweep) the floor now. Then I’m going to take out the trash.

23. Don’t forget 　　　　(turn) off the lights when you leave home.

22. Are you good at 　　　　(play) basketball?