听力原文：W: Good afternoon, sir. What can I do to help? M: Oh, I have a terrible cold. Apart from that, I have a headache. Can you suggest something I can take to relieve the pain? W: Don't you have a prescription? M: No, I haven't gone to see a doctor. W: Are you allergic to any type of medication? M: I don't know exactly. I think that I can take most drugs. W: OK then, I recommend this brand for quick relief. M: Will this really help? W: According to the label, yes. But if that doesn't help, then drink a cup of hot tea along with some honey. There's no miracle drug to cure a common cold. M: Which are the best headache tablets? W: We have a number of them. They are all very good. M: Can you sell me penicillin? W: Sorry, sir. I cannot sell it you must first get a doctor's certificate or prescription. M: Well, then, give me some boric acid. W: All right. This is a common medicine. M: Do you have any cough syrup and lozenges? W: Yes, of course. M: That's great. W: Here you are. The instructions on it tell you how to take it. Make sure you read them carefully. M: Thank you for reminding me. W: Please pay special attention to this cough syrup. Shake the bottle before you take it. M: Thank you very much indeed. W: Anything else? M: No, thank you. W: You're welcome. I hope you will recover in no time. (20)