听力原文：M: (22)I would like to rent a car with a good stereo for a whole month. W: I think you made the right choice. Come to us. We have a wide selection of vehicles you can choose from. All our cars have stereos in them, and also air conditioning. M: Good. (22)I am here visiting my girlfriend. I want her to have a good time. W: Oh, is that so? Well, let me show you something she might like. It's on our back lot. M: This is a Porsche! But I probably can't afford it. It must be really expensive. W: Well, (23) it's only $ 500 a month. You see, this car has a lot of miles on it. That's why it's so cheap. But it's in nice shape, isn't it? M: Yes, it almost looks new. W: Take a seat inside and see what you think. M: OK. Wow, it's so cool. W: So you will take the Porsche then, sir? M: Yes, and I want to buy the insurance too. I think it's necessary. W: You're smart to buy it. (23)At 45 dollars for three days, it is a good deal. M: Can I return the car in San Francisco? W: San Francisco? No, sir. (24)We only have this office here. You will have to return it here. M: Really? I heard in America you can return rental cars in different cities. W: No, sir. That's only with the very big companies. I'm sorry, but this car must be returned to this lot. Do you still want the car, sir? M: Yes. It will be fun. Driving back down the coast. My girlfriend will like it. W: It would be a beautiful drive. M: Where are the keys? W: (25)Just a moment, sir. We have to finish filling out the forms first. (23)