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题目
题型:不详难度:来源:
–Someone is knocking at the door. Who ______ it be?
--It         be Victor. He has gone to London yesterday.
A.can; mustn’tB. can ; can’tC.will; mustD.may; mightn’t

答案
B
解析

试题分析:句意:有人正在敲门。它可能是谁?不可能是维克多,昨天她已经去了伦敦。must,can(could),may(maight) 可以表示猜测,must 表示肯定猜测,用于肯定句,肯定……,一定……;can’t,表示否定猜测,肯定不……,另外can(could),may(maight),表示可能性猜测,可能……。根据句意,可知第一次问,不知是谁敲门,所以把握比较小,后文的猜测因为知道他去了伦敦,所以是否定猜测的把握比较大。根据句意,故选B
核心考点
试题【–Someone is knocking at the door. Who ______ it be? --It         be Victor. He h】;主要考察你对词法等知识点的理解。[详细]
举一反三
Must I read all the stories today?
No, you ___. You can finish them tomorrow.
A. can’t  B. needn’t  C. mustn’t
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The lady in this photo ________ be over fifty! She looks so young!
A.mustn’tB.mustC.can’tD.can

题型:不详难度:| 查看答案
-- There were already five people in the taxi, but the driver managed to take me as well.  
--It ________ a comfortable journey.
A.can"t be B.shouldn"t be C.mustn"t beD.needn’t be

题型:不详难度:| 查看答案
There’s still an hour left, you _____ go in a hurry. 
A.mustB.needn’tC.canD.mustn’t

题型:不详难度:| 查看答案
– Who didn’t turn off the light after school yesterday?
– It ______ be Lucy. She told me she was the last one to leave the classroom.
A.mustB.mustn"tC.mightD.can"t

题型:不详难度:| 查看答案
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