1 . When it comes to death, Vincent Van Gogh ________ by others in that his wound didn’t indicate suicide, while Albert Einstein ________ longer but he refused surgery.

A．may have been killed; should have lived

B．should have been killed; should have lived

C．may have been killed; must have lived

D．should have been killed: must have lived

2 . —Look! There stands a man over there behind the tree.I guess it ________ be Mr.Smith.
—It ________ be him.He has gone to his hometown.He left yesterday.

A．may, can’t	B．can, mustn’t
C．must, may not	D．should, shouldn’t

3 . 有些人可能对这个字眼不熟悉，但是你对这种感觉其实是十分清楚的。
Some of you________________ that word, but you know the feeling very well.

4 . 选用适当的单词或短语补全对话
Boss: All the documents     1     （must/can） be prepared before the meeting starts
Secretary: I know that. Kelly has been working on the documents since last Monday. She     2    （may/must）have got everything ready but I am not sure.
Boss: Wheres Kelly then?
Secretary: She     3     （must/has to）be in the sales managers office now. I saw her go in there a minute ago.

5 . 选用适当的单词或短语补全对话

may/must/ should/can/ be able to/have to

June: Excuse me,     1     I use your computer for a while?
Melissa: Yes, you     2    . But it is not connected to the Internet, so if you want to check your e-mail, you won’t     3    
June: Then I’ll     4     find another one, but thank you anyway.

6 . 选词填空

can, could, may, might, must（包含其否定形式）

1. Helen ________ go on a trip with us, but she isn’t quite sure.
2. My sister met him at the theatre last night, so he ________ have attended your lecture.
3. —I am sure I saw Brian in the park this morning.
—You ________ be imagining things. He left for America last night.
4. —Is John coming by bus?
—Not sure. He should, but he ________. He likes riding his bike.
5. —Isn’t that your teacher over there?
—No, it ________ be him. I'm sure he doesn’t wear glasses.
6. I saw him just now, so he ________ have gone abroad.
7. We ________ have faced the difficulty together, but why didn’t you tell me?
8. —What has happened to George? He hasn’t turned up so far.
—I don’t know. He ________ have got lost in the woods.
9. —She looks very happy. She ________ have passed the exam.
—I guess so. It’s not difficult after all.
10. For example, you ________ want to be a pilot but ________ become one because your eyesight is not good enough.

7 . 有时候举例也许有助于解释抽象的概念。
Sometimes ________________ to use examples to explain abstract concepts. (helpful)

8 . 我明天可能和你一起去看电影——这取决于我今晚能否完成报告。（汉译英）