M: That's all the same to me. What was said before this conversation?
Ans: W: We are going to change our meeting from Monday to Friday.

F: I saw it after school. What was said before this conversation?
Ans: M: When did you see the American film?

M: No, she is still at home. What was said before this conversation?
Ans: W: Has your mother gone to library?

M: After six the bus gets crowded, I wouldn't get a seat. What was said before this conversation?
Ans: W: But why so early? You don't have to be at work until eight.