可能啊，楼上瞎讲嗯since后面加过去式，前面是完成时，小学你没学好啊it has been a long time since i last saw you
since后面加过去式，前面是完成时，呵呵 楼下说得对。。。抱歉啊
前面应该是完成时
It has been a long time since I saw you last time
that is ok.no problem
