The committee __ over the problem among themselves for two hours. 
#100019
A
has argued
B
has been arguing
C
have argued
D
have been arguing
推荐题目
Don’t phone me between 7:00 and 8:00 in the evening. We _____ dinner then.
#102937
A
are having
B
had
C
would have
D
will be having
The book was received so eagerly that it _____ on the first day.
#104197
A
sold up
B
was sold up
C
was sold out
D
sold out
——What’s that noise?——Oh, I forgot to tell you. The new machine ______.
#103929
A
was tested
B
will be tested
C
is being tested
D
has been tested