早教吧 育儿知识 作业答案 考试题库 百科 知识分享

____ four years since I joined the Army.A. There was B. There is C. It was D. It is为什么选d不能选c啊?

题目详情
____ four years since I joined the Army.
A. There was B. There is C. It was D. It is
为什么选d不能选c啊?
▼优质解答
答案和解析
It is sometime since
自从..以来已经多长时间了