Question

【题目】 — Why do you look so worried?

— My MacBook Pro broke down and my paper ______ unfinished since.

A. has been left B. has left C. left D. had been left

Answer 1

【答案】 A

【解析】

试题分析：句意：—你为什么看上去那么担心？ —我的苹果笔记本坏了，从那以后我的论文就搁置没完成。since提示用现在完成时，论文被放一边，用被动语态。 has been left现在完成时的被动语态； has left 现在完成时的主动语态；left一般过去时的主动语态；had been left过去完成时的被动语态。故选A。

考点: 考查时态和语态的用法。