1 . 在空白处填适当的情态动词。
1. “Look at these tracks. It ______ be a wolf.” “Don’t be so sure. I think it ______ be a fox.”
2. I didn’t see her in the meeting room this morning. She ______ have spoken at the meeting.
3. It’s a very kind offer, but I really ______ accept it.
4. The boss said to the secretary, “If you work well, you ______ have a rise.”

2 . 单句语法填空(情态动词)
1. In today’s information age, the loss of data ____________cause serious problems for a company.
2. It’s strange that he____________have taken the books without the owner’s permission.
3. I can’t find my purse. I____________have left it in the supermarket yesterday, but I’m not sure.
4. —How do you do, Mr Smith? Thanks for meeting me here.
—You are welcome. You ____________be exhausted after a long walk.
5. —Hi, is that Peter Brown?
—Sorry. You____________(dial) the wrong number.
6. —I didn’t see her in the meeting room this morning.
—She can’t____________(speak) at the meeting.
7. Mike____________have arrived at 8：30 for the meeting, but he didn’t turn up.
8. Often he____________(will) sit for hours doing nothing at all when he was in low spirits.

3 . He plays basketball very well. He_________ it a lot.

A．may practise	B．must practise
C．must have practised	D．should have practiced

4 . You ______ have been out last night, for all the lights in your room were not on.

A．need

B．must

C．may

D．should

5 . 语法填空（用方框内所给情态动词完成下面的句子）

1. Why are there only 12 tickets left? There _____________be 15.
2. A well-trained person _____________hold his breath under water for more than two minutes.
3. What's the matter with my computer? It _____________not work!
4. The situation there was still unclear, and my son _____________be in trouble though I was not quite sure.
5. He _____________not be serious, but is just joking.
6. He _____________be sleeping in the dormitory. You can find him there.
7. The witness was under strict protection, and no one but the police _____________get close to him.
8. What _____________we do if we come across such a person?
9. Since you have finished your work, you _____________go now.
10. When the weather was fine, he_____________ keep his wife company along the river bank.

6 . 改错
1. As the kid, I loved to watch cartoons, but no matter how many times I asked to watching them, my parents would not to let me.
2. Some classmates suggest we can go to places of interest nearby.
3. He mustn't be a basketball player, because he is much too short．
4. Robert's new book about space exploration is fantastic． You simply could read it．
5. Has he learnt about computer, we would have hired him to work here．
6. If we   booked a table earlier, we wouldn't be standing here in a queue．
7. All of us love the weekends, because we can't get up early on Saturdays and Sundays．
8. He might have gone to bed, for the light was out．
9. He commanded that roads built to link castles across the land．
10. We must go to the concert tonight, but we are not sure yet．

7 . You _____ be right but I’m going back to check anyway.

A．should

B．must

C．need

D．might

8 . --- I called you last night, but no one answered.
--- Sorry, I _______ sleeping.

A．must have been

B．would have been

C．must be

D．could be

9 . Who is knocking at the door? ________ it be your guest?

A．Can

B．Shall

C．May

D．Must

10 . I’m sorry, but you _____ go wrong. There’s no such man here.

A．need

B．can

C．must

D．will