— Why do you look so worried? —My computer broke down and my essay ______ unfinished since.
#101438
A
had left
B
has left
C
has been left
D
was left
推荐题目
―Hello!May I speak to Jack, please?  ―Yes, speaking. -Oh, I _______ your voice at first.
#101984
A
don’t recognize.
B
didn’t recognize.
C
hadn’t recognized.
D
haven’t recognized.
Mr.Wang ______ two boys to send the sick boy to the nearest hospital.
#104349
A
arranged
B
has arranged
C
had arranged for
D
has arranged for