26. - I promise her daughter ____ get a nice present on her birthday.

　 - Will it be a big surprise to her?

A. should 　　　 B. must C. would 　　　 D. shall

25. She ___ the hospital so soon, for she has not yet recovered.

A. wouldn't have left 　　 B. shouldn't have left

C. mustn't have left 　　　　　　 D. didn't have to leave

24. - A man answered the phone. I suppose it was her husband.

- It ___ her husband. He has been dead for ages.

A. mustn't be 　　　 B. couldn't have beenC. may not have been 　　　 D. mustn't have been

23. - I didn't go to work yesterday afternoon because my car broke down.

　 - You ________ mine. I wasn't using it.

A. might borrow 　　　　　 B. could have borrowed

C. can have borrowed 　 D. ought to borrow

22. - I haven't seen Mr. White for weeks.　 - What _____ to him?

A. must have happened 　　　 B. may have happened

C. can have happened 　 D. may happen

21. He was taken away by the police. He ___ for a robber.

A. must be mistaken 　　 　　　B. was being mistaken 　　

C. must mistake 　 　　　　　　D. must have been mistaken

20. - I wonder why Mr. Wang didn't attend the lecture.

　 - He ____ another one.

A. could have 　　　 B. must have C. might have had D. should have had

19. Don't throw the bottles away. They ____ in the future.

A. may need 　 B. are needed 　　　 C. can be needing D. might be needed

18. - You must phone us every week.　 - Yes, I _____.

A. must B. have to 　　 C. will 　 D. should

17. I think he could have joined us, but he ____

A. doesn't 　　 B. did 　　 C. didn't 　　　 D. couldn't