you _____ the washing up.i would have done it for you.A.needn't have done B.didn't need to do

问题描述:

you _____ the washing up.i would have done it for you.A.needn't have done B.didn't need to do

A
needn't have done 表示过去 本不需要做某事但做了
didn't need to do表示过去不需要做某事,也没有做.
这里是你本不需要做,因为我会为你做.