问题
选择题
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 seen
B．have been; have seen
C．had been; had seen
D．have been; had seen
答案
D
第一空为现在完成时，与一段时间状语连用（for eight years）;第二空：在一次晚会上认识之前就见过，上是“过去的过去”的一个动作，帮选D。