— You seem familiar with Mr. John?—Of course we together for three years in the 1990s.A.

问题补充：

— You seem familiar with Mr. John?

—Of course, we together for three years in the 1990s.

A. have worked

B. were working

C. are working

D. worked

答案：

A. have worked

B. were working

C. are working

(答案→)D. worked

解析：句意：你似乎和约翰先生很熟悉？——当然了，在九十年代我们在一起工作了3年。结合语境可知本句描述的是过去某时的动作，故用一般过去时态。选D。