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题目
题型:不详难度:来源:
– There’s somebody at the door. Who ____ it be? Is it the postman?
-- No. It ______ be him. It’s just seven o’clock. It’s too early.
A.must, may notB.will, won’tC.may, mustn’tD.may, can’t

答案
D
解析
“有人敲门,会是谁呢?是邮差吗?不,不可能是他,才7点,太早了。”may用于推测,用在疑问句和否定句中表示“可能,可以”,will 表示“将要”,而must 表示“必须,肯定”的意思,故第一空用may;第二空can’t 表示否定的推测“肯定不是,一定不是”,而mustn’t表示不准的意思,不适合。所以正确答案是D。
核心考点
试题【– There’s somebody at the door. Who ____ it be? Is it the postman? -- No. It ___】;主要考察你对词法等知识点的理解。[详细]
举一反三
We hope that as many people as possible ______ join us for the charity show tomorrow.
A.needB.canC.mustD.should

题型:不详难度:| 查看答案
--Who is making much noise?    
---It ____ be Timmy. He is sleeping now.
A.can’t B.may notC.mustn’t D.couldn’t

题型:不详难度:| 查看答案
-- Who’s singing in the next room?  
--- It ____ be her . She went to New York yesterday evening
    
A.can’tB.mustC.shouldn’tD.can

题型:不详难度:| 查看答案
You            stand in line while waiting for the bus.
A.mustn’tB.can’tC.are supposed toD.don’t

题型:不详难度:| 查看答案
----- Can you ride a horse?
--------No, I ________.
A.needn’tB.may notC.can’tD.mustn’t

题型:不详难度:| 查看答案
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