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题目
题型:不详难度:来源:
You ________ in person; a telephone would have been enough.
A.couldn"t have comeB.needn"t have come
C.shouldn"t have comeD.mustn"t have come

答案
B
解析
B考察情态动词加完成式的用法。couldn"t have come不可能已经做了某事;         needn"t have come 本不必做某事; shouldn"t have come本不应该做某事;        mustn"t禁止,千万不要。句义:你本不必亲自过来,打个电话就可以了。故B正确。
核心考点
试题【You ________ in person; a telephone would have been enough.A.couldn"t have comeB】;主要考察你对动词的分类等知识点的理解。[详细]
举一反三
When I lived with my roommates in the university, we ________ often talk into the night.
A.mightB.could
C.shouldD.would

题型:不详难度:| 查看答案
—Where did you get The Frog written by Mo Yan?
—I picked it up from a bookshop online if you ________ know.
A.mustB.will
C.canD.shall

题型:不详难度:| 查看答案
Every time she was in trouble, she went to him for help, as he said he   ________     do anything for her.
A.shouldB.must
C.wouldD.might

题型:不详难度:| 查看答案
—Did Ann fail in English?
—She ________. Don"t you notice that she looks depressed?
A.mightB.must
C.may haveD.could have

题型:不详难度:| 查看答案
We all know that we ________ our carbon footprint, but I suspect that many people wouldn"t be prepared to go as far as Joan Pick, a retired scientist living in south London.
A.must have reducedB.should have reduced
C.may have reducedD.could have reduced

题型:不详难度:| 查看答案
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