Read the below conversation. M: Do you have any brothers or sisters? What would the listener say?
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Answer: W: 1 have two brothers but no sisters. My parents love us very much.

Read the below conversation. M: It was such an interesting lecture. I hope you enjoyed it as much as I did. What would the listener say?
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Answer: W: I must admit that I almost fell asleep in the first 30 minutes.

Read the below conversation. W: John's been dismissed for stealing. What would the listener say?
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Answer:
M: There must be some mistake.