【答案解析】[听力原文] 36-38 W: Good morning, sir. Can I help you? M: I'd like to pay my bill now. W: Your name and room number, please? M: Jim Baker, room 207. W: Yes, Mr. Baker. Have you used any hotel services this morning? M: No, I haven't used any this morning. W: Fine. This is your bill, Mr. Baker. Two nights at 90 dollars each, and here are the meals that you've had at the hotel. That makes a total of 330 dollars. M: Can I pay by credit card? W: Certainly, May I have your card, please? M: Here you are. W: Thanks please sign your name here.