nice knowing you.nice to have know you的区别

题目

nice knowing you.nice to have know you的区别
----Really nice _____you.I'm going to miss you.
----Don't forget to give me a ring,will you?
A.knowing B.to know
C.to have know D.knew
作为结束语,不是应该选A的么?

答案

to have know 是完成时态.
已经认识你了.
而knowing是这次刚刚认识你.
根据语境,是已经认识,现在要离开,回答说别忘了打电话给我