28. Thank you very much for ____________(help) us.

27. Stop ___________(talk) and listen to me carefully.

26. His wish was ____________(become) a doctor.

25. ______(tell) you the truth, I dislike making friends with him.

24. Mary opened the door for him _______(come) in.

23. The doctor was busy ____________(operate) on the boy at that time.

22. I have been busy all these days. I really want __________(relax) myself.

21. Can you finish ___________(read) the book in three days?

20. They said they had nothing _________(worry) about.

19. You’d better _________(try) this medicine.