问题补充:
It was very kind of you to do the washing-up but you it
A. needn’t do
B. shouldn’t do
C. mustn’t have done
D. needn’t have done
答案:
A. needn’t do
B. shouldn’t do
C. mustn’t have done
(答案→)D. needn’t have done
解析:考查情态动词。ABC选项都含有推测之意。不恰当。D项needn’t have done表示“本没有必要做,但实际已经做了”。句意:你真好,把这些东西都洗了,但是你原本没有必要洗。故D正确。