问题
How do you improve your listening, Mary? —Just ______ listening to tapes, it’s a good way, you know. [ ]
A: to
B: in
C: by
D:for
B: in
C: by
D:for
正确答案是:
同类题型
I know you’re busy these days, but you’d better ___________ off today’s work till tomorrow.
I know the country very well because I ______ here since 1988 .
Is this your e-book? —No, ________ is on the teacher’s desk.
This robot is supposed to save a lot of labor, but it remains a problem if it ______.
There are __________ flowers in the square during National Day.