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―Hello!May I speak to Jack, please?  

―Yes, speaking. 

-Oh, I _______ your voice at first.

A.don’t recognize.

B.didn’t recognize.

C.hadn’t recognized.

D.haven’t recognized.

 

【答案】

B

【解析】本题考查动词时态。句意为:“我”最初没有辨认出“你”的声音。说话的时候已经听出来是Jack的声音,“没听出来”是说话前的动作。所以应该用过去时态。?

 

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