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

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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 needn’t have done表示没必要做，但已做了。

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他终于通过了自学考试。Hefinallypassedtheexaminationofself-studyprograms.“自学考试”不是self