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
推荐题目
After inspecting the building, specialists discovered some faults that otherwise ___________.  
#102621
A
were overlooked
B
would be overlooked
C
had been overlooked
D
would have been overlooked
If you plant watermelon seeds in the spring, you __ fresh watermelon in the fall.
#103746
A
eat
B
would eat
C
have eaten
D
will be eating
Some buildings built in the past _______ down and new ones are being built there.
#103572
A
will be pulled
B
had been pulled
C
have been pulled
D
are pulling