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
—Why were you so late this morning? —I _____ in heavy traffic for an hour on the way here.
#101422
A
have been caught
B
have caught
C
had caught
D
was caught
He was angry _____ your work. He said that he _____ at all.
#103724
A
at, didn’t satisfy
B
to, didn’t satisfy
C
at, wasn’t satisfied
D
to, wasn’t satisfied