--- An ant has two stomachs --- one for itself, one for others.--- Really? Quite interesting. I ____ anything about it.
#103271
A
don’t know
B
have known
C
haven’t known
D
didn’t know
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
This is the best dinner that I________.
#99168
A
enjoyed
B
have enjoyed
C
had enjoyed
D
enjoy
 Turn on CCTV news and we ________how happy our life is. But there is no denying that over the past decades, the cost of living ________ sharply.
#100307
A
are seeing; had increased
B
will see;has been increasing
C
see; increased
D
have seen; is increasing
–Hi, Tom, You look tired. --Yes, I _____________ the room all the afternoon.
#102380
A
painted
B
had painted
C
have painted
D
have been painting