Please answer this: M: Oh, really? That's not like the Tom we know. What was said before this conversation?
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Answer: W: Tom must be in a bad mood today. He hasn't said half a dozen words all afternoon.

Please answer this: W: I want to have a trip to Beijing because I have never been there. But my mother wants me to stay at home and study since I am going to take the National Entrance Examination next year. What was said before this conversation?
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Answer: M: What are you going to do this summer vacation?

Please answer this: M: Er... No, thanks. I'm not really interested in volleyball. What was said before this conversation?
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Answer:
W: I've got two tickets for a volleyball match this evening. Why don't you come?