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 IfirstmetLisathreeyearsagowhenwe

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问题详情:

 IfirstmetLisathreeyearsagowhenwe

 I first met Lisa three years ago when we ____ at a radio station together. A. have worked B. had been working C. were working D. had worked

【回答】

C

知识点:动词时态

题型:选择题

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