--Could  you meet  me at  the  station?

问题描述:

--Could  you meet  me at  the  station?
--I’d  like  to ,but  I _ Stanghai   when   you  return.   A .will  have  left      B was leaving     C. will  leave    D.have   left  .选哪个? 为什么?

A 将来完成时.表示你回来的时候(将来)我已经离开上海了