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

5. He _______ have completed his work; otherwise, he wouldn't be enjoying himself by the

seaside. A. should B. must C. wouldn't D. can't

6. - Do you know where David is? I couldn't find him anywhere.

- Well. He have gone far-his coat's still here. （05湖北卷）

A．shouldn't B．mustn't C．can't D．wouldn't

7. - The woman biologist stayed in Africa studying wild animals for 13 years before she returned. - Oh, dear! She _______ a lot of difficulties! (05 江苏卷)

A. may go through B. might go through

C. ought to have gone through D. must have gone through

8. I have lost one of my gloves. I ________ it somewhere. （05 北京春季）

A. must drop B. must have dropped

C. must be dropping D. must have been dropped

9. Mr. White _____ at 8:30 for the meeting, but he didn't show up.

A. should have arrived B. should arrive

C. should have had arrived D. should be arriving

10. He paid for a seat, when he ______ have entered free. （05 山东卷）

A. could B. would C. must D. need

IV. 反思小结：______________________________________________________________

11. - Tom is never late for work. Why is he absent today?- Something ______ to him.

A．must happen B．should have happened

C．could have happened D．must have happened

12. I _______ have been more than six years old when the accident happened. （05 天津卷）

A. shouldn't B. couldn't C. mustn't D. needn't

13. This cake is very sweet. You __________ a lot of sugar in it. （05 辽宁卷）

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

ABDDBCDBAADBD