问题: 单选25
It was very kind of you to do the washing-up, but you __ it.
A mustn’t have done B wouldn’t have done
C mightn’t have done D didn’t have to do
解答:
It was very kind of you to do the washing-up, but you _D_ it.
A mustn’t have done B wouldn’t have done
C mightn’t have done D didn’t have to do
你去做这些洗衣的事情真是太友好了.不过你不需要去做啊.
过去没有必要用needn't have done sth,didn't have to do sth
参考文献：calendula28
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