—Look! The man at the gate _______be our headmaster. He is always standing there
题型：不详难度：来源：
—Look! The man at the gate _______be our headmaster. He is always standing there every morning.
—No, it_______ be him. He is holding a meeting in the office now.| A．must; can’t | B．must; mustn’t | | C．can’t; can’t | D．can’t; mustn’t |
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答案
| A |
解析
试题分析：句意：--看！在大门口的那个男人一定是我们的校长。每天早上，他一直站在那。--不，不可能是他。现在，他正在他的办公室开会。分析：考查情态动词的用法，表示肯定的猜测用must; 表示否定的猜测用can.故选A |
举一反三
—Must I hand in my homework now， Mr.Smith?
—No，you ________.| A．can’t | B．shouldn’t | | C．wouldn’t | D．needn’t |
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— you sing the song Where Are You Going, Daddy?
— Yes. It’s easy.
A. Can B. May C. Must |
-Must I do my homework now? -No, you _ _. You may have a rest.| A．mustn"t | B．needn"t | | C．can"t | D．wouldn"t |
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—Must I water the flowers now? —No, you ________ . You __________ do it later.| A．mustn’t, must | B．mustn’t, may | | C．needn’t, may | D．needn’t, must |
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I ______ follow you. Would you please repeat it?| A．can’t | B．mustn’t | | C．needn’t | D．shouldn’t |
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