It was very kind of you to do the washing up, but you _______ it.A.mustn"t have

It was very kind of you to do the washing up, but you _______ it.A.mustn"t have

题型:不详难度:来源:
It was very kind of you to do the washing up, but you _______ it.
A.mustn"t have doneB.wouldn"t have done
C.mightn"t have doneD.didn"t have to do 

答案
D 
解析
考查情态动词和虚拟语气的用法。don"t have to do sth.“不必做某事”。也可以说needn"t have done it。
举一反三
—How"s this pink evening dress? I wear it to the party _______ shall I choose that white one?
—They both look beautiful, but I think your blue dress is suitable.
A.Must; or; fairlyB.May; and; much 
C.Shall; and; veryD.Shall; or; more 

题型:不详难度:| 查看答案
—I paid 200 dollars for the necklace. I think it"s much too expensive.
—Expensive? I don"t agree with you. You so before you _______ it.
A.should have said; boughtB.have said; bought
C.had said; buyD.must have said; should buy

题型:不详难度:| 查看答案
—The woman biologist stayed in Africa studying wild animals for 13 years before she returned.
—Oh, dear! She _______ a lot of difficulties!
A.may go throughB.might go through
C.ought to have gone throughD.must have gone through

题型:不详难度:| 查看答案
But for the heavy rain, the sports meetwould be held last Wednesday.
A        B            C           D
题型:不详难度:| 查看答案
I can hear the Browns" phone bell ringing but no one is answering it; they _______ be at home.
A.would B.mightC.needn"tD.can"t

题型:不详难度:| 查看答案
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