问题

一 Mum, I am feeling tired and sleepy now. 一 You _____ so late last night. [ ]

A: couldn't have stayed up
B: mustn't have stayed up
C: shouldn't have stayed up
D: needn't have stayed up

正确答案是：

同类题型

下列各句中，没有语病的一句是

I think he is taking an active part in social work Iagree with you ___________

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blood if you can and many lives will be saved

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