A、Clerk and guest. B、Shop assistant and customer. C、Employer and employee. D、Store keeper and customer. A人物关系判断题。根据对话的内容，我们可以得知男

W: Good morning, sir. May I help you?
M: Yes. Would you please find a room for our business meeting?
W: Certainly, sir. How many people do you have?
M: Well, about 10.
W: Fine. We have a conference room which can seat up to 20 people.
M: That’s great. What about the charge?
W: It is 90 RMB per hour. There is no minimum charge. Do you want to book it?
M: Yes, I think so.
W: May I have your name and room number, please, sir?
M: Mr. Black, Room 1208.
W: Thank you, Mr. Black. How long will you be using the conference room?
M: We’ll start at 10 o’clock tomorrow morning but I’m not sure when we’ll finish.
W: No problem, Mr. Black. The room will be at your disposal then.
8. Q: What’s the probable relationship between the two speakers?