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题目
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A computer ______ think for itself. It’s always told to do things.
A. mustn’t        B. can’t           C. shouldn’t
答案
B
解析
因为mustn’t 意为“不允许,禁止”; can’t意为“不可能”; shouldn’t意为“不应该”。此处句子强调的是:电脑不能够自己思考,只能服从人类的指令。所以B合适。
核心考点
试题【A computer ______ think for itself. It’s always told to do things.A. mustn’t    】;主要考察你对词法等知识点的理解。[详细]
举一反三
—Mum, must I wash the dishes right now?
—No, you ____.
A.shouldn’tB.wouldn’tC.mustn’tD.needn’t

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Where are you going this month?
We_________ go to Xiamen, but we’re not sure.
A.needn’tB.mustC.mightD.mustn’t

题型:不详难度:| 查看答案
—Are you in a hurry?
—No, I’ve got plenty of time. I _______ wait.
A.canB.can’tC.mustD.mustn’t

题型:不详难度:| 查看答案
—________I have lunch now, Mom?
—No. You must wash your hands first.
A.Would      B.May  C.Ought to
题型:不详难度:| 查看答案
-- Must I water the flowers right now?
--No, you           . You may do it after supper.
A. mustn"t                  B. needn"t                    C. can"t
题型:不详难度:| 查看答案
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