—Why do you look so worried? —My Macbook Pro broke down and my paper unfinished since.A. w

发布时间：2020-08-16 22:56:05

—Why do you look so worried?
—My Macbook Pro broke down and my paper     unfinished since.
A. was left
B. has left
C. left
D. has been left

网友回答

A. was left
B. has left
C. left
(答案→)D. has been left
解析：考查时态题。我的苹果笔记本坏了，我的论文还没写完呢。根据since可知，本句应用现在完成时。
以上问题属网友观点，不代表本站立场，仅供参考！