[Q]: W: Hello. Is that Mr. Jackson? M: Yes, it is. W: Mr. Jackson. I am a reporter from the TV station at school. As far as I know, you are a very successful teacher and quite popular among the students, so I want to ask you some questions. M: OK. W: Do you often give homework to your students after class? M: It depends. Maybe once or twice a week. W: Do you think it is good for your students to do a lot of homework? M: No, I don't think so. Too much homework takes too much of their free time. I seldom give homework to my students on the weekend. They need time to relax and rest, especially on weekends. W: You are a great teacher. By the way, what do you do in your free time? M: I'm a very good football player. My team won first place in our city tournament last year. W: Congratulations! Well, thank you for your help. What was said before this conversation?
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[A]: M: Hello?

[Q]: M: Yes, my son and daughter bought this pen here for my wife's birthday, but it doesn't work, so I'd like to exchange it. W: Let me see. Was it dropped or anything? M: No, but you can see that the point is bent a little bit. W: Yes, it is, isn't it? We'd be happy to exchange it for you. But I'm afraid we don't have another purple one. We only have this pen in black and yellow now. M: My wife doesn't care for either of those colors. W: We have one with a red leather cover. That's three dollars more. M: The children worked hard to save up the eleven dollars for this one. They would probably be upset if I paid for part of their present. W: If you want, we can order another pen just like this one. M: That sounds like a good idea. Would you please go ahead and do that? W: We'd be very happy to. It will take a week or ten days. We'll call you when it comes in. M: Thank you very much. What was said before this conversation?
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[A]: W: Can I help you?

[Q]: F: Perhaps you'd like to change your order, sir. What was said before this conversation?
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[A]: M: Waitress! This meat is like stone! It's enough to break every tooth in your mouth.

[Q]: W: I'm looking for sports shoes for my son. M: Here are some shoes for boys. What was said before this conversation?
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[A]:
M: What can do for you?