Itwasverykindofyoutodothewashing-upbutyou

問題詳情：

 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

【回答】

D

知識點：虛擬語氣與情態動詞

題型：選擇題