[Q]: M: Well, I should be. I've lived here all my life. What are you looking for? W: The Post Office. M: Well, the nearest one is about a mile away. W: Oh. Well, I guess I could send a letter. M: There's a mail box up the street. Have you already got a stamp on that letter? W: Yes, I have to register it. How do I walk to the post office from here? M: Go up this street until you get to the main street. Then turn right and walk about four blocks or so. W: Thank you for your help. M: The post office entrance is inside a building complex with some other offices. W: I'm sure I'll find it. If I get lost, I'll ask again. M: There's an American flag out front, and a sign: The U.S. Post Office. W: Thanks again. Bye. What was said before this conversation?
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[A]: W: Pardon me. Are you familiar with this neighborhood?

[Q]: W: In that case, you won't miss any courses tomorrow morning then. What was said before this conversation?
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[A]: M: I'm going to take a blood test at 7:45 tomorrow morning.

[Q]: W: There you are. I'm getting worried. It's so late. M: Yes. I ran into Linda and we went to a pub. She told me a funny thing. W: Oh? What was that? M: Well, she was driving home after work, and she suddenly saw an old lady on her hands and knees in the middle of the road. W: Really? M: Yes, Linda was so shocked that she stopped suddenly and the car behind crashed into hers. W: Was her hurt? M: No. W: And what was the old lady doing? M: I am just coming to that. So Linda got out of her car and saw the old lady pick up something and walk away. W: Lucky indeed. Linda didn't run her over. M: Then a policeman came. But he didn't believe what Linda said. W: Well... M: Luckily there was a witness, a man waiting for a bus. He saw it all. Guess what the old lady was doing? W: I haven't the slightest idea. M: She was looking for her gold tooth. W: A gold tooth? M: Yes, it fell out as she was crossing the road. The witness heard her saying, "Oh, my gold tooth..." What was said before this conversation?
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[A]: M: Hi, Mum.

[Q]: M: You know this isn't the first time that people are saying Brazil will be a great economic power. The same thing was said over a hundred year ago. But it didn't happen. W: Yes, but you must admit the world's a very different place now. M: Of course. In fact I believe there's maybe some truth in the prediction this time around. First of all, though, we must remember the problems facing Brazil at the moment. W: Such as...? M: There's an enormous gap between the rich and the poor in this country. In Sal Paulo, you can see shopping malls full of designer goods right next door to the slam areas without proper water and electricity supplies. A lot of work needs to be done to help people in those areas improve their lives. W: What needs to be done? M: Education, for example. For Brazil to be successful, we need to offer education to all Brazilians. Successful countries like South Korea and Singapore have excellent education systems. Brazil needs to learn from these countries. W: So you are hopeful for the future. M: As I said earlier, I'm hopeful. This isn't an easy job. We need to make sure that these important opportunities for Brazil aren't wasted, as they were in the past. What was said before this conversation?
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[A]:
W: Today in the studio we have Alberto Cortez, the well-known Brazilian advocate of the anti-global movement. He's here to talk about the recent report, stating that by 2050 Brazil will be the one ot the word's wealthiest and most successful countries. Alberto, what do you say to the report?