I was really anxious about you. You _______ home without a word.A.mustn’t leaveB

I was really anxious about you. You _______ home without a word.A.mustn’t leaveB

题型:不详难度:来源:
I was really anxious about you. You _______ home without a word.
A.mustn’t leaveB.shouldn’t have left
C.couldn’t have leftD.needn’t leave

答案
B
解析
本题考查should have done 的用法。should have done只用于谈论过去情况,指本该发生而实际上未发生的情况。shouldn’t have done表示"本来不应该做某事,而实际做了”。含有指责对方或自责的含意;couldn"t have done 只表推测,相当于 can"t have done意为:“过去不可能做了某事.”。
举一反三
I ______ her, but I never could.
A.ought to helpB.must help
C.ought to have helped D.must have helped

题型:不详难度:| 查看答案
—Hi, Johnson, any idea where Susan is?
—It"s class time, so she       in the classroom now.
A.can beB.must have beenC.might have beenD.should be

题型:不详难度:| 查看答案
Mary __________ the job he offered to her, but she didn’t.
A.can’t takeB.ought to have takenC.should takeD.must have taken

题型:不详难度:| 查看答案
--- Are you in a hurry?
--- No, in fact, I’ve got plenty of time. I _______ wait.
A.canB.mayC.mustD.Should

题型:不详难度:| 查看答案
—Are you going to help him?
—Why  ___ I help him? He" s never done anything for me.
A.wouldB.couldC.mightD.should

题型:不详难度:| 查看答案
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