[Q]: W: Sure, go ahead. M: I want to know what's on this weekend. W: Is there anything interesting? M: The Fools Garden is giving a performance today. W: They are a pop group. They are said to be very good. What time does the performance start? M: 7 P.m., will you be free then? W: Yes, I'd like to go. M: Let's go together then. W: All right. What was said before this conversation?
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[A]: M: Helen, can I have a look at your newspaper?
input: Please answer the following: W: Ok, it's about 500 km farther than from Guangzhou to Shanghai. What was said before this conversation?
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output: M: It's about 2300 km by train from Guangzhou to Beijing.
Please answer this: W: Well, when I graduated from drama school, I tried to get a job as an actress in Hollywood. M: Really? W: Yeah, but I didn't get any parts. Two years later, I finally got a job with Universal Studios. M: So you finally got to be an actress? W: No, I'm a tour guide at the studio!But while I'm on the job, I get to see a lot of stars! What was said before this conversation?
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Answer: M: So tell me a little more about yourself, Sharon.
Problem: M: Not yet. I'm still examining. I'll let you know the result tomorrow. What was said before this conversation?

A: W: Have you found anything wrong with my heart?
Problem: Given the question: W: Fine. Thanks. M: Tomorrow is my birthday. I would like to invite you and your family to my birthday party. Our teacher Mr. Wang in University will come also. W: Thank you very much. When will it begin? M: At 6:30 pm. W: Oh. Let me see. I get off work at 5:30 every day and then spend about 35 minutes on meeting my husband and my daughter, We shall cost about 45 minutes to go to your home. Is that all right? M: Yes, of course. W: OK. See you tomorrow. M: See you then. What was said before this conversation?
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The answer is:
M: Hello. I haven't seen you for a long time. How are you?
Problem: W: Hm, that would make a big difference. What was said before this conversation?

A:
M: If Professor King gave us one more week, we would be able to complete the task.