问题

We keep in touch_____ writing often. [ ]
A: with
B: of
C: on
D:by
B: of
C: on
D:by
正确答案是:
同类题型
Is there uniform on the sofa? –No, there is on the desk.
Bill Gates was born______ October 28, 1955. [ ]
Dad, the phone is ringing. I guess either you or Mum ________ on the phone.
MaYun is a_________ businessman. He can always deal with many problems______ .
Hey guy, turn it off please. We don’t __________music in the reading room. —Oh ,sorry!