—Itisalongtime      Isawyoulasttime. —Yes.Anditwillbea...

问题详情：

 —It is a long time       I saw you last time.

  —Yes. And it will be a long time      we see each other again.

       A. when; before          B. after; when                    C. since; before         D. since; until

【回答】

C

知识点：连词

题型：选择题