John and I friends for eight years. We first got to know each other at a Christmas party

问题补充：

John and I friends for eight years. We first got to know each other at a Christmas party. But we each other a couple of times before that.

A. had been； have met

B. have been； have met

C. had been； had met

D. have been； had met

答案：

A. had been； have met

B. have been； have met

C. had been； had met

(答案→)D. have been； had met

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