A、Australian and American. B、Guest and host. C、Husband and wife. D、Professor and student. C

W: It’s really a big problem to teach our children how to behave. When I get angry, I say things I don’t mean.
M: If you want your kids to be polite, you’ll have to be polite to them.
Q: What conclusion can be drawn from this conversation?

M: Honey, we’ll have a guest from Australia, a friend of mine. He’ll stay in California for two weeks.
W: Yes. Your friend Andy. He was your classmate at London University, wasn’t he?
Q: What is the probable relationship between the two speakers?