從A、B、C、D四個選項中，選出可以填入空白處的最佳選項。
1. - Has Li Lin started? He said he would join in the party.
- He ______. He is a man of keeping his word.
A. could have left B. must have left
C. can’t come D. won’t be coming
2. - May I park my car here?
- No, you ______. No car is allowed to park here.
A. may not B. needn’t C. mustn’t D. daren’t
3. - Excuse me, could you tell me where the Yajia Supermarket is?
- It’s two blocks straight ahead. You ______ miss it.
A. mustn’t B. can’t C. needn’t D. shouldn’t
4. - I saw Mr. Sun at Tongyu Station this morning.
- You ______. He’s still on holiday in Hawaii.
A. couldn’t have B. mustn’t have
C. shouldn’t D. needn’t
5. - How about paying a visit to Dr. Wang, our former Chinese teacher?
- Good idea. I will e-mail him today so that he ______ know ______ to expect us.
A. shall; why B. could; when C. would; what D. will; how
6. Everything has two sides. Beautiful songs, sometimes, ______ be just noise to others.
A. must B. may C. should D. could
7. Someone ______ my umbrella. I found it wet yesterday.
A. must be using B. must have used
C. must use D. must have been using
8. - How dangerous it was!
- Yes, but for the passer-by’s quick action, the girl ______.
A. was drowned B. could have been drowned
C. had drowned D. should be drowned
9. You ______ scold such a pupil who always keeps silent so seriously that you ______ hurt him.
A. should; can B. may; will
C. mustn’t; may D. can’t; must
10. - Why does Alice know so much about Angkor Wat?
- She ______ have been there, or ...
A. must B. oughtn’t to C. may D. can’t
11. - You may laugh, but I’ve been thinking of becoming a vegetarian.
- Oh, you ______ be crazy. You will be hungry all the time.
A. must B. may C. will D. need
12. - What’s the matter with you?
- Oh, I’m not feeling well in the stomach. I ______ so much fried fish just now.
A. shouldn’t eat B. mustn’t have eaten
C. shouldn’t have eaten D. mustn’t eat
13. - ______ he have been chosen as captain of the football team?
- Yes, he ______.
A. Can; must have B. Must; must have
C. Can; must D. Must; must
14. Mr. Zhang ______ in Shanghai tomorrow morning.
A. can have arrived B. will have arrived
C. may have arrived D. must have arrived
15. Miss Wang started at 8 o’clock, and she ______ be there now.
A. should B. can C. can’t D. need
16. - It must be Mr. Li who did it.
- No, it ______ be Mr. Li.
A. mustn’t B. wouldn’t C. can’t D. may
17. You ______ finish reading the book as soon as possible.
A. may B. can C. need D. should
18. - Need you go to work now?
- Yes, I ______.
A. must B. need C. can D. dare
19. Your trousers are dirty. ______ them for you?
A. Shall I wash B. Will I wash
C. Am I going to wash D. Am I washing
20. You are late for school today. You ______ to school earlier.
A. ought to come B. should have come
C. ought have come D. should come
21. We must learn from Lei Feng, ______ we?
A. may B. can’t C. don’t D. needn’t
22. She must be hungry, ______ she?
A. isn’t B. needn’t C. doesn’t D won’t
23. He ought to come here early, ______ he?
A. would B. should C. didn’t D. shouldn’t
24. You used to smoke, ______ you?
A. used to B. don’t C. didn’t D. shouldn’t
25. You ought ______ for what you haven’t done.
A. not to be punished B. not be punished
C. to not punished D. to not be punished
26. ______ you please tell me the way to the post office?
A. Must B. Need C. Would D. Should
27. I’m sure he ______ have the computer sooner or later.
A. shall B. can C. must D. would
28. It is important that we ______ learn how to drive.
A. have to B. should C. need D. shall
答案及解析：
1. B。從He is a man of keeping his word中可以看出，李林肯定已經出發來參加聚會了，這是對已經發生的事情非常肯定的推測，故用must have done。注意must表推測時，不能用于否定句和疑問句中。
2. C。此題考查以情態動詞提問的一般疑問句的回答。在英語中，以某些情態動詞提問的句子，出于禮貌委婉或句意的需要，回答時，要換用另一個情態動詞。在回答must開頭的一般疑問句時，肯定回答用must，否定回答用needn’t或don’t have to；在回答may開頭的一般疑問句時，肯定回答用may，否定回答用mustn’t；在回答need開頭的一般疑問句時，肯定回答用must，否定回答用needn’t。
3. B。根據題意，此處需要表示“推測”的否定結構，故can’t為正確答案。
4. A。這是一個省略句，couldn’t have done表示對過去發生的動作的否定推測，意為“不可能……”。
5. B。這是一個綜合題。本題so that后的目的狀語從句中的謂語動詞要用“情態動詞（ may / might / can / could ） + 動詞原形”。When to expect us表示“我們什么時候可到達”。“疑問詞+不定式”結構在句中作know的賓語。
6. B。由sometimes可知，此處應用表示可能性不大的情態動詞，即may。
7. B。由后句可知，這是對過去發生的事情的肯定推測，故B項正確。
8. B。but for的意思是“要不是”，語法功能上等同于if 引導的否定虛擬條件句，因前句中How dangerous it was可知應與過去事實相反。
9. C。mustn’t表示“不準許”，may表示可能性，所以C正確。
10. C。句意：她或許到過那里，或者……。or ... 是重要的信息，說明還有其他的可能性。A的說法太絕對，與or ... 提供的信息沖突。
11. A。must表示的把握最大，may表示有可能，need不表示推測，will表示將來。根據句意可知A正確，表明對對方的不理解和責備，語氣比較堅決。
12. C。shouldn’t have done 表示“本不該做……，但實際上卻做了”。
13. A。疑問句中可以用can, 肯定句用must。
14. B。will + have done，表示對將來必然進程的猜測。
15. A。should 表示主觀性猜測，譯為“應該”。
16. C。can’t 表示否定的猜測，側重于主觀判斷，譯為“決不會；不可能”。
17. D。should表示勸告某人應該做某事。
18. A。need引導的一般疑問句，肯定回答應用must。
19. A。Shall I ... ？是征求對方意見時常用的句型。
20. B。should have done表示“過去某件事應該做而實際上沒有做”，此處含有責備之意，也可用ought to have come。
21. D。反意疑問句中，當must作“必須”解時，可以用needn’t / mustn’t構成附加疑問句。
22. A。反意疑問句中，陳述部分的must表示對現在情況推測時，附加疑問句中通常依據must后面的動詞形式確定助動詞。
23. D。反意疑問句中，陳述部分的謂語有ought to 時，附加疑問句中應用shouldn’t 或oughtn’t。
24. C。反意疑問句中，陳述部分的謂語有used to 時，附加疑問句中應用didn’t 或usedn’t。
25. A。ought to 的否定式是ought not to。
26. C。Would you please ... ？是向對方提出請求或詢問時常用的婉轉而有禮貌的句型。
27. A。主語是第三人稱時，shall表示說話人給對方的“允諾；命令；指示；意愿”。
28. B。在It is important / impossible / necessary that ... 句型中，that從句的謂語用“( should + ) 動詞原形”。