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

正确答案是：

同类题型

Mr. Brown is an experienced doctor. He is always _______ in facing with emergency.

Only when ____in the afternoon _____able to leave.

______ do you play on your computer? —I often play Counter Strike and Final Fantasy. [ ]

Have you decided ____________ on April 1st?—I will put a piece of paper which says “Hi” on my brother’s back.

His sister is a nurse ______ a hospital. [ ]