A、Doctor and patient. B、Customer and waiter. C、Shop-assistant and customer. D、Conductor and passenger. B从女士的回答可知，她是想看一下菜单，所以对话应该

W: I have a sore throat.
M: Let me have a look…Well, it’s nothing serious.
Q: What is the probable relationship between the two speakers?

M:Can I help you, Madam?
W:Yeah, please show me the menu.
Q:What’s the relationship between the two speakers?