[Q]: W: I think everyone felt the same. What was said before this conversation?
****
[A]: M: I was deeply affected by the tallk the blind boy gave this morning.

[Q]: M: Why? What's wrong with them? What was said before this conversation?
****
[A]: W: I'm going to take down those curtains and put up new ones.

[Q]: W: Why not wash them yourself? There's a laundry on Third Street. What was said before this conversation?
****
[A]: M: Do you know where I can have my clothes cleaned?

[Q]: M: Post office? It's not far from here. Do you know Xinhua Road? W: I'm from the United States and this is my first trip to your city. I know nothing about the city. M: Oh, welcome to our city, I'll show you the road. Please follow me. W: Thanks, by the way, where can I buy a map of the city? M: Just at the gate of the post office. Look, the post office is just across the street. W: Thank you very much. Good-bye. M: Good-bye. What was said before this conversation?
****
[A]:
W: Excuse me, could you tell me where the post office is?