—You should have come to the party last Saturday evening.It was really wonderful.

题目

—You should have come to the party last Saturday evening.It was really wonderful.
—But a friend ________ an unexpected visit to me.
A．paid x05 B．had paid C．would pay D．has paid
为什么不用完成时,说话者不是强调影响吗?

答案

答案A
解析： 从you should have come 应该做而没做, 推断,这里是和过去事实相反虚拟.所以答句用一般过去时.
现在完成时表示 动作已经完成,对现在产生影响. 这里并体现影响在哪