Q: M: I will cross the street to buy some. What was said before this conversation?
A: F: Oh, no, we have no milk.

Q: John: No problem. Glad you could make it. Hey. Have you met any of the famous guests so far? Heather: Uh, no. Who exactly? John: Well, there is Gregorio Zuttlemisterburger ... [Who?]. Ah. They call him the "Grip" for short. Heather: Who in the world is he? John: You've never heard of him? [No.] He's the world famous snake trainer ... He's never met a snake he couldn't train to dance and hiss at the same time. Heather: Seriously? Where is he? John: Uh, he's the tall guy over there in the purple jacket and green pants. He probably has a snake or two with him tonight. Heather: Huh? John: And then there is Georgina, the Great. Heather: Georgina ... and great for what? John: Are you serious? You've never heard of her? She is the world's greatest arm wrestler. I mean, World champion. She's the petite woman next to the fireplace with the bright yellow dress and the tennis shoes. Heather: I thought you said famous people ... like, like people we all know. John: And, and there is Brad Pitt ... Heather: Now, there's someone I recognize ... John: ... the captain of the national Yo-Yo team [What?]. Yeah. He's the short, stocky man sitting at the table wearing the black and red checkered shirt. I'm sure he'd do a few tricks for you if you asked. Heather: Uh, no thank you. I think I've had enough entertainment for one evening. John: Okay. What was said before this conversation?
A: Heather: Hey. John. This looks a great party. [Yeah!] Thanks for inviting me.

Q: F: He is in hospital. What was said before this conversation?
A: M: I haven't seen Tommy for days.

Q: W: That's exactly what I am doing. M: What subject is it this time? W: Biology, and it's going to be a hard one. M: Don't you get tired of studying all the time? W: Yes, I do. Sometimes I want to throw all of them right out of the window. M: I don't know how you keep on with it. It's too hard to become a doctor. W: Well, you study a lot too. It doesn't seem any easier to become an engineer. M: But at least it doesn't take as long. I'll be out putting up the buildings while you're still a student here. By the way, can I help you with your study now? W: Yes, please. You can read me all these words and see if I know what they mean. M: I don't know if you'll remember all of them. W: You have to learn just as many words as I do, and they're all technical words that I don't understand. What was said before this conversation?
A:
M: Don't tell me you're studying for another exam!