A、Doctor and Patient. B、Student and teacher. C、Sales assistant and customer. D、Manager and office clerk. B此题考查听细节的能力，解题的关键点在听到‘

M: Hi Carol, do you have the notes from Mr. White’s history class last Monday?
W: Yes, don’t worry, you can borrow my notes. I actually went to the class, unlike you !
Q: What does the man ask?

M: I was wondering if it would be ok for me to miss the next class? I must go to visit a friend of mine who is in hospital at the moment.
W: Of course, Vincent. I’m very sorry to hear about your friend.
Q: What is the relationship between the man and the woman?