[Q]: W: Well, as a matter of fact, we were discussing this question last night. We all spoke of the Great Wall, one of the seven wonders of the world. We wouldn't want to leave China without seeing that. If it could possibly be arranged, how far is it from here? M: Only about 50 kilometers. Just an hour and a half's trip by car. We'll put down at the Great Wall then. W: Good! And we've heard quite a lot about the Summer Palace. We'd like to see that, too. M: All right, the Summer Palace, well, and there are a number of places that I think you'd find interesting, the Temple of Heaven, the Former Imperial Palaces and the Ming Tombs. What was said before this conversation?
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[A]: M: Before making out a plan for sightseeing trips for you, I'd be glad to know if you have anything special in mind that you'd like to see.
input: Please answer the following: W: It used to, but the price has gone up 15 dollars. M: Well, that's more than I can afford, I'm afraid. What was said before this conversation?
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output: M: I thought that the chair cost 50 dollars.
Please answer this: M: Well, actually, Camilla and I are breaking up. W: What happened? Did you have an argument? M: No. She is really a very nice girl. W: Yeah, she is. She is pretty, caring, and easy-going. And she's a great cook! M: Well, you are right. But sometimes she's too caring... well, no... she's just possessive... and... a kind of control, you know... I need some space for myself. W: Oh? Did you talk with her about it? M: I've tried, but it didn't work. W: Oh, so, when are you going to tell her? M: Maybe tonight. I don't know. I don't know how to tell her. W: I know she is head over heels in love with you. She'll be badly hurt! M: I know. What was said before this conversation?
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Answer: W: Hi, Ben, we're having a party tonight. Do you want to come and join us? You can bring your girlfriend.
Problem: F: No, I'm going to the playground. Can you come with me, Tom? What was said before this conversation?

A: M: Hello, Mary. Are you going to the library?
Problem: Given the question: F: Thank you,but I call do it without help. What was said before this conversation?
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The answer is:
M: May I carry the bag for you?
Problem: M: Some of these books aren't so old, though. See? This novel was published only six years ago. It cost seventy-five cents. W: Hey! Look at this! M: What? Are you getting interested in nineteenth-century plays all of a sudden? W: No. Look at the signature. Someone gave this book as a present, and wrote a note on the inside of the front cover. It's dated 1856. Maybe it's worth something. M: Everything on that shelf is worth fifty cents. W: But if this is the signature of someone who is well-known, it might bring a lot more. I hear William Shakespeare's signature is worth about a million dollars. M: Oh? I can hardly read what the one says. Who wrote it? W: The name looks like "Harold Dickinson". Wasn't he a politician or something? I'm going to buy this book and see if I can find a name like that in the library. M: Good luck. Your book of plays may make you rich, but I'll bet my seventy-five cents novel is a better buy. What was said before this conversation?

A:
W: I enjoy going through secondhand bookstores, don't you? It's interesting to see what people used to enjoy reading. Did you see this old book of children's stories?