The examination has been cancelled. You ______ all that revision, after all.A、di

游客2024-10-03  8

问题 The examination has been cancelled. You ______ all that revision, after all.

选项 A、didn’t need to have done
B、needn’t have done
C、need to do
D、needn’t do

答案 B

解析 此题考查情态动词+现在完成时的用法,“need”既可用做及物动词,也可用做情态动词。上述句子中“你们不必复习”,意思是“你们已经做了,但实际上不必做。”此句“need”是用做情态动词,否定式就是“needn’t”,正确答案是B。
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