听力原文：M: Good morning, what can I do for you? W: Morning! Could you please give me something for the pain? I couldn't get to sleep until three o'clock this morning. It's too terrible. M: Let me see, madam, aspirin is the strongest medication I can give you without a prescription. W: Oh, I'm afraid that isn't strong enough, and I don't have an appointment with my dentist until next week. M: Who is your dentist? W: Dr. Williams. Do you know him? M: Yes, I think so. Doesn't he have his office just on the corner? W: Yes, he does. M: Are you a regular patient? W: Yes. I have been his patient for several years. M: Oh. Then I can call him if you like Dr. Williams will give me a pain prescription over the phone. W: I'd appreciate that very much. Do you think that he'll still be in his office? M: Sure. It's only four-thirty. He should be there until five. W: Good. M: Too bad you can't get an appointment sooner. W: I know. Dr. Williams is always booked up though. I was lucky to get in as soon as I did. M: In the meantime, be careful not to eat or drink anything too hot or too cold. W: I really don't feel like eating or drinking anything at all. M: Well, I'll give Dr. Williams a call and we'll see what we can do for you. Wait a minute. Let me look up my address book for his number. W: That's very kind of you. Don't bother to took for his number. I have it with me. Here it is. M: That'll be OK. I know suffering from toothache is terrible. Wish you can recover yourself soon! (20)