—Listen！Helen is singing in the next room.—It _____be Helen .She has gone to Bei
题型：不详难度：来源：
—Listen！Helen is singing in the next room.
—It _____be Helen .She has gone to Beijing.| A．should | B．mustn’t | C．may | D．can’t |
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答案
| D |
解析
试题分析：A. should 应该 B. mustn’t 禁止 C. may可能 D. can’t不可能；句意：听！海伦正在隔壁房间唱歌。不可能是海伦，她已经去北京了。故选D
点评：情态动词是中考的热点，情态动词除了表推测外，还可以表达另外的意思，如must理解为必须，由这个词所开头的问句，肯定回答用Yes,you must.否定回答用No,you needn’t或者是No,you don’t have to.注意不用mustn’t，因为mustn’t表示例行禁止的含义。 |
举一反三
You look quite tired. You’d better _____a good rest.| A．stop to have | B．stop having | C．to stop to have | D．to stop having |
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—What do you think people can do for their aged parents?
—They_________ do anything except to be with them and be themselves. | A．don’t have to | B．oughtn’t to | C．mustn’t | D．can’t |
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—Morn, must I clean my room now?
—No, you . You can do it in the afternoon.| A．mustn"t | B．needn"t | C．can"t | D．don"t |
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You keep quiet in the library because everyone is reading here.| A．may | B． should | C．mustn’t | D．needn’t |
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— Must I return the book tomorrow?
— No, you ________. You can keep it for three days.| A．mustn’t | B．needn’t | C．can’t | D．may not |
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