W: Thank you, but I promised my sister I'd take her to the park. What was said before this conversation?
----
Answer: M: If you'd like to go out for dinner. I'll phone the restaurant.

M: It was very heavy. But I got my roommates to help me with it. What was said before this conversation?
----
Answer: W: How did you ever move that desk upstairs to your room?

M: It's not diet. It's just that I don't eat much at this time of day. What was said before this conversation?
----
Answer:
W: Why only one piece of bread? You are not dieting, are you?