[Q]: W: If you buy an old one, it'll be much cheaper and you can save a lot of money. What was said before this conversation?
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[A]: M: I can't decide whether to buy a new house or an old one.

[Q]: M: Believe it or not, that is the last thing I want to do. What was said before this conversation?
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[A]: W: Lots of people enjoy dancing, do you?

[Q]: W: I think so. I hope she doesn't miss the next one, otherwise she'll be late for the opening address at the conference. What was said before this conversation?
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[A]: M: Where's Joan? She said she would be here at 3, but now it's 3:30. She must have missed the train.

[Q]: M: Oh, I'd really like to, but I have promised my sister to see a movie with her tonight. What was said before this conversation?
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[A]:
W: Michael, would you like to eat out tonight?