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-How long at this job? -Since 1990. A. were you employed B. have you been employ

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-How long at this job? -Since 1990. A. were you employed B. have you been employ

—How long ________ at this job?

—Since 1990.

A. were you employed

B. have you been employed

C. had you been employed

D. will you be employed

 

试题答案

答案:B

解析:
本句用完成时当无疑问。

 

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