M: No, I'm sorry, but I have to catch up with my homework. What was said before this conversation?
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Answer: W: David, are you coming with us to the park?

M: Come on. With his mother hospitalized rightafter he's taken on a new job, he's just got a lot on his mind. What was said before this conversation?
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Answer: W: Do you know what's wrong with Mark? He's been acting very strangely lately.

M: As a matter of fact, I already sold them back to the school bookstore. What was said before this conversation?
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Answer:
W: I wonder if you could sell me the Psychology textbooks. You took the course last semester, didn't you?