It was very kind of you to do the washing-up but you _____ it
A．needn’t doB．shouldn’t doC．mustn’t have doneD．needn’t have done
D

試題分析：考查情態(tài)動詞。ABC選項都含有推測之意。不恰當。D項needn’t have done表示“本沒有必要做，但實際已經(jīng)做了”。句意：你真好，把這些東西都洗了，但是你原本沒有必要洗。故D正確。
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