—Why do you look so worried?  —Fred left the company half an hour ago. His work _______ unfinished since.
#104457
A
left
B
was left
C
has left
D
has been left
推荐题目
We’ve been told the good news, but when and where to go for the exciting paid vacation _______ yet.
#101524
A
are not discussed
B
have not been discussed
C
is not being discussed
D
has not been discussed
The surface of the table ______ smooth enough.   
#102806
A
hash’t felt
B
isn’t feeling
C
doesn’t feel
D
isn’t felt
I have got four day's holiday to Paris. I _______ my father.
#99523
A
am taking
B
had taken
C
took
D
have taken