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题目
题型:不详难度:来源:
–Look! A man is cutting a tree on the moon.
--It ______ be true. The teacher said there is no air on the moon.
A.can’tB.may notC.shouldn’tD.mustn’t

答案
A
解析

试题分析:句意:看!一个人在月亮上砍树。一定不是真的。老师说月亮上没有空气。A. can’t 表示否定猜测,一定不是  B. may not 不可能  C. shouldn’t 不应该 D. mustn’t一定不要做某事,表示禁止和劝告。情态动词可以表示对事物的推测,肯定句中由情态动词must/may/might+be 构成,意为“一定是,肯定是/也许是”,否定句由can’t+be构成。故选A。
核心考点
试题【 –Look! A man is cutting a tree on the moon. --It ______ be true. The teacher sa】;主要考察你对词法等知识点的理解。[详细]
举一反三
— Can you play the guitar?       — _________________. 
A.No, I canB.Sure, I can’tC.No, you canD.Yes, a little

题型:不详难度:| 查看答案
------Shall we meet at the station at 8 a.m?
-------In fact we________.The train _______until 10a.m.
A.mustn’t ;doesn’t leaveB.mustn’t ;leaves
C.needn’t ;won’t leaveD.needn’t;will leave

题型:不详难度:| 查看答案
You          drive your car so fast. It’s dangerous.
A.wouldn’tB.shouldn’tC.couldn’tD.mightn’t

题型:不详难度:| 查看答案
This CD _______ belong to Bill. It has his name on it.
A.mustn’tB.mightC.can’tD.must

题型:不详难度:| 查看答案
You have worked for a long time. You ____________ be very tired.       
A.mustB.can’tC.couldD.mustn’t

题型:不详难度:| 查看答案
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