Clare finally decided to leave the company she__for since she graduated from university.

问题描述:

Clare finally decided to leave the company she__for since she graduated from university.
A.would work B.has worked C.was working D.had worked
工作不是在毕业之后蛮,可是后面毕业不是用了过去式,为什么工作要用过去完成时啊

此处 可见 最后决定的离开 动作发生在过去 而她一直工作的公司 更是发生在过去的过去当然用 过去完成啊
求满意那毕业是过去式 怎么解释...什吗意思额,就是后面的时间状语从句里面,毕业graduated from ,那个是过去式诶graduate应该是在工作之前才对啊...就是 过去的过去的过去?.....