問題詳情

31.—Catherine, I have cleaned the room for you.—Thanks. You it. I could manage it myself.
(A)needn’t do
(B)needn’t have done
(C)mustn’t do
(D)shouldn’t have done

參考答案

答案:B
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)

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