He could speak English fluently because he __________ it for four years when he was a college student.    
#101396
A
had studied
B
have been studying
C
studied
D
was studying
推荐题目
In the meeting, the professor expressed his thanks for the aid he _________ from his students.
#100096
A
received
B
was received
C
have received
D
had received
—I took a picture of you just now.—Really? I______with attention.
#104359
A
didn’t look
B
wasn’t looking
C
am not looking
D
haven’t looked
Either you or the headmaster ________ the prizes to these gifted students at the meeting.
#103442
A
is handing out
B
are to hand out
C
are handing out
D
is to hand out