What do you usually talk ( )lunch ?We usually talk ( ) our planet.A. on,forB. at , aboutC. for , at D. no .and
问题描述：
What do you usually talk ( )
lunch ?We usually talk ( ) our planet.
A. on,for
B. at , about
C. for , at
D. no .and
答
B
在什么时候谈论
谈论什么东西