I have to see the doctor because I ________ a lot lately.
#63773
A
have been coughing
B
had coughed
C
coughed
D
cough
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I wonder why Jenny ____ us recently. We should have heard from her by now. 
#63792
A
hasn’t written
B
doesn’t write
C
won’t write
D
hadn’t written
 It’s reported that in the past 50 years around 80 percent of Beijing’s courtyard houses ______.
#63767
A
had wiped out
B
have wiped out 
C
have been wiped out 
D
had been wiped out
I have to see the doctor because I ________ a lot lately.
#63773
A
have been coughing
B
had coughed
C
coughed
D
cough
They ______Hong Kong twice.  
#63785
A
have gone to
B
have been to
C
have been in
D
have gone in