---Whydoyoulooksoworried? ---Mycomputerbrokedownandmye...
来源：语文精选馆 1.31W
问题详情：
---Why do you look so worried?
---My computer broke down and my essay _____unfinished since.
A. was left B. has left C. left D. has been left
【回答】
D
知识点：现在完成时及其被动式
题型：选择题
