问题
选择题
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
答案
答案：C
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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
答案：C