A、Classmates. B、Boss and secretary. C、Husband and wife. D、Teacher and student. C

W: It only takes six hours from here to Los Angeles, but you’ll have a two-and-half-hour layover between the flights.
M: That’s all right. I don’t mind spending some time in Los Angeles visiting my friends.
Q: How many hours will the man be in Los Angeles?

M: Being an efficient secretary, you should have to finish your work punctually at the office, not do it now at home.
W: I know that, my dear. But I have been very busy and I couldn’t finish it when the office hour was over.
Q: What is the probable relationship between the two speakers?