A、Teacher and student. B、Writer and reader. C、Doctor and patient. D、Host and guest. C本题问的是二人之间的关系。根据对话的第一句What’s the matter with

M: What’s the matter with you, madam?
W: I have a headache. And I felt confused and cold.
M: You probably have caught a cold. Let me check your pulse and lake your temperature. Oh, you de have a high fever.
W: Is it serious?
M: Take it easy. Here is the prescription and get some medicine, you will be better soon.
W: Do I have to be given an injection?
M: Yes, before you leave, I want my nurse to give you an injection.
W: Okay. Do I have to go on a diet?
M: Not necessarily. Drink as much water or juice as you can, avoid greasy food and keep warm.
W: Thank you.