---Has Tom finished his job yet?  ---I have no idea of it; he _____ it this morning.
#103678
A
has been doing
B
had been doing  
C
did   
D
was doing
推荐题目
 I have to see the doctor this afternoon because I ____ a lot lately.
#99964
A
have been coughing
B
had coughed
C
coughed
D
cough
—I took a picture of you just now.—Really? I______with attention.
#104359
A
didn’t look
B
wasn’t looking
C
am not looking
D
haven’t looked
--- What do you think of this novel? --- Er … sorry. I _____. What did you say?
#101280
A
didn’t listen
B
hadn’t listened
C
haven’t listened
D
wasn’t listening