—Why do you look so worried? —My Macbook Pro broke down and my paper _____unfinished since.
#101868
A
was left
B
has left
C
left
D
has been left
推荐题目
Tom as well as his friends ____ to visit our school soon after they arrive in Changsha.
#103277
A
is coming
B
are coming
C
will have come
D
has come
—Why were you so late this morning? —I _____ in heavy traffic for an hour on the way here.
#101422
A
have been caught
B
have caught
C
had caught
D
was caught
“If I ________ taking drugs, I would be a successful businessman now,” said the dying drug addict. 
#102799
A
didn’t start
B
haven’t started
C
hadn’t started
D
shouldn’t start