问题

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

正确答案是：

同类题型

We’ll make a trip to Hainan Island next weekend. Will you go with us—No, I can’t _____ it at present.

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. I feel the thing thwith large concerns.