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He the exam, but he was too careless. A. could have passed B. couldn’t have pass

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He the exam, but he was too careless. A. could have passed B. couldn’t have pass

He ________ the exam, but he was too careless.

A. could have passed              B.couldn’t have passed

C. must have passed                D.may have passed

 

试题答案

【答案】

A

【解析】

试题

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