It's five years since I_____ you last time A met B meet C have met D had met

问题描述:

It's five years since I_____ you last time A met B meet C have met D had met

选A [自从我们上次见面以来已经5年了./我们已经5年没见面了.]
要掌握常用句型:It's + 一段时间 +since + 一般过去时