Problem: Given the question: M: Blue is popular with boys, but I would prefer a green one. What was said before this conversation?
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The answer is:
W: You should have a look at the new MP4 player over there. It's a new design and it comes in four colors: light green, dark blue, black and brown.

Problem: Given the question: M: Certainly. The idea is not to have a house full of different things. This is a complete home system. It will make people's lives easier. W: OK! So tell me how this house will make my life easier? M: When you arrive at the front door, you won't need a key. The door will open with a touch of your finger. You'll be able to call your refrigerator when you're at the grocery store and find out how much you need to buy. Isn't it wonderful? W: Can I call the washing machine as well? M: Sure. But you won't need to. The house comes with a robot. It is programmed to clean the house and do the washing. W: What does it cost? M: A million dollars. W: A million dollars! It will be the 22nd century before I can afford to buy one! What was said before this conversation?
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The answer is:
W: Hello, Mr. Tompkins. Our newspaper is going to print an article about new products. Could you tell me about the new home your company has built? I understand it promises to be a model for the houses of the future.

Problem: Given the question: M: Hi, Mary! Where is Hill? W: Oh, he's probably at home. M: Why? W: He drank too much last night. M: Now we have to do this work without him. W: Even when he comes, he's too lazy to do very much. M: Right. I'm fed up with him. What was said before this conversation?
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The answer is:
W: Hi, Jim!