[Q]: W: Yeah, I guess so. I spent the weekend at the beach. M: Oh, yeah, that's great. Where did you stay? W: Some friends of my parents' live out there and they invited me for as long as I wanted to stay. M: So what are you doing back here already? W: Oh, 1 have a paper to work on, and I just couldn't do any serious studying at the beach. M: I don't blame you. So what did you do out there? I mean besides lying out in the sun. W: I ran slowly up and down the beach, and 1 played some volleyball. You know I never realized how hard it is to run on sand. I couldn't even get through a whole game before I had to sit down. M: Did you go swimming? W: I wanted to, but they said the water isn't warm enough for that until a couple of months from now. M: It all sounds nice. I wish I could get away to the beach like that. What was said before this conversation?
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[A]: M: Hey, Karen, it looks like you've got some sun this weekend.
input: Please answer the following: W: Exactly. You know, I've got a million things to do and all of them have to be finished in the next 30 minutes. What was said before this conversation?
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output: M: how is it going, Mary? You look a little overwhelmed.
Please answer this: M: No. Why do you ask? W: You have so many empty cans here. M: Well, my mum wants me to keep all the cans, so that we can sell them after a while. W: Aha, you are going to make a millionaire of yourself sooner or later with all those cans. M: You bet I will. Well, that's not the point. The point is we separate reusable things from other rubbish. We have to pay the dustman for dealing with rubbish, but if we sell him these cans and other reusable material we pay less. W: That sounds a clever idea. Now what are reused in China? M: Metal, plastic, paper, books and the like. W: Just as we do back home in the States. M: And to avoid waste, the government is limiting the production of goods that can be used only once, such as bamboo chopsticks. For example, all the fast food boxes should be made of paper instead of non-reusable material. W: That will surely be helpful for a clean environment. What was said before this conversation?
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Answer: W: Do you collect cola cans, Steve?
Problem: M: Certainly. What do I do? W: Just fill in this form, if you would, please. What was said before this conversation?

A: W: Good morning, sir. Could I ask you to register, please?
Problem: Given the question: W: You're right. It was taken 71 years ago, during the Second World War. I was just 6 years old then. M: Is this little girl you? W: Yes. And the little boy is my younger brother. The couple standing behind us is our parents. It is the only picture of my family. M: Hadn't you taken any pictures together before you took this one? W: Of course we did. But all the pictures were destroyed when a bomb destroyed our house. This picture survived because I always took it with me. M: Didn't you taken any picture after the bomb? W: Well, it was a sad story. My father was killed in that bombing. M: I'm sorry to hear that. War left many people sad memories. W: Yes. And I'm so glad we can lead such a peaceful life nowadays. What was said before this conversation?
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The answer is:
M: Look at this picture. It might have been taken many years ago.
Problem: M: Yes, many American people do think so, and they feel proud of Lincoln. He rose from the lowest to the highest position in the United States. W: DO you know how he was killed? M: Yes. It was on April 14, 1865. After a very busy day, Lincoln and his wife went to see a play at a theatre in Washington. A 25-year-old man, who was from the South, suddenly shot Lincoln through the head. W: Did he die immediately when he was shot? M: No, he didn't. He died early the next morning in the hospital. What was said before this conversation?

A:
W: It's well known that Abraham Lincoln was the greatest American, you know.