问题
选择题
— 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
答案
答案:D
— 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
答案:D