[Q]: W: No, I never am, but... M: Wow! Your coat's very dirty! Did you fall? W: Yes, I had a terrible experience on the underground train. Listen to this! A man came up to me and pulled out a knife. He pointed it right at me! M: Oh, no! Are you all right? Did he hurt you? W: No, he didn't hurt me, but he took my handbag. M: Then what happened? What did you do? W: I caught hold of his knife, and he pushed me to the floor. M: Oh, no! Why did you catch hold of his knife? That's dangerous. W: I don't know. I didn't think. M: And what did the other passengers do? Did they help you? W: Yes, they did. Two men ran after the robber and held him. M: Did the police come? W: Yeah. The conductor called a policeman, and he took the robber to the police station. M: What a story! Thank God you're all right. What was said before this conversation?
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[A]: M: Hello, Joan. Why are you late today? You are never late for work.

[Q]: M: Oh, I waited for you at the corner of your street. Then I looked for you at your flat, but the housekeeper said you were out. What was said before this conversation?
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[A]: W: George. Where were you yesterday evening? I expected to see you at the concert.

[Q]: W: It won't be easy. M: Thanks a lot. W: I'm just kidding, Bob. Actually I think once we show everyone how well you did as junior class treasurer, you will win easily. M: How do you do that? Meet with all three thousand people who are members of the student body? W: Come on! What I'm thinking of first is hanging campaign posters in all the hallways where most of the students are sure to see them. M: That sounds good. But everyone puts up posters. What can we do differently? W: The campus radio station is willing to let you have five minutes tomorrow morning at seven o'clock to outline your plans for the year. Lots of students will be listening then. M: That's a great idea! W: I've also arranged for you to give a speech during dinner tomorrow. At least five hundred students will be there. You'll answer questions after you finish speaking. M: How about if I write it tonight and show it to you after chemistry class tomorrow? W: Fine. What was said before this conversation?
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[A]: M: You're campaign manager Julie. How do I convince the members of the student body to know that I'm the best candidate for school president?

[Q]: W: Three of them are. But that smaller one costs only half the price of the big ones. What was said before this conversation?
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[A]:
M: I'd like to buy these four greeting cards. Are they ten yuan each?