They ________ here for three years before you ________ last week. A. have worked / came B. have been working / come C. was working / had come D. had been working / came

They ________ here for three years before you ________ last week.

A. have worked / came           
B. have been working / come
C. was working / had come        
D. had been working / came

Trả lời

Chọn đáp án D

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