A、Doctor and husband. B、Shop assistant and customer. C、Librarian and student. D、Boss and secretary. B女士问“先生，您需要两个点什么?”男士回答说“我想买些

M: I want to go home. The film is not interesting.
W: Go home? I’ m enjoying it.
Q: Where are the speakers?

W: What can I do for you, sir?
M: Well, I’ d like to buy some bread.
Q: What is the probable relationship between the two speakers?