- Catherine, I have cleaned the room for you. - Thanks. You it. I could manage i
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— 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
试题答案
B
解析:
根据句意可知Catherine对对方为她打扫了房间表示感谢并提到对方本来不必为她打扫房间。很显然对方打扫房间是过去所为,表达“去不必做某事”用needn’t have done sth.