单选题
The examination has been cancelled. You ______ all that review, after all.
A、
didn't need to do
B、
needn't do
C、
needn't have done
D、
needn't to do
【正确答案】
C
【答案解析】
[解析] 本句的意思是“考试已经被取消了。毕竟,你本不需要做那么多的复习工作。”needn't have done意为“本不需要”,表示与过去事实相反。因此正确答案为C。
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