—He didn’t devote his time to his study did he?—．As a result he failed all the final exams

问题补充：

—He didn’t devote his time to his study，did he?

—．As a result，he failed all the final exams．

A. Yes，he did

B. No，he didn’t

C. Yes，he didn’t

D. No，he did

答案：

A. Yes，he did

(答案→)B. No，he didn’t

C. Yes，he didn’t

D. No，he did

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