A、The visiting economist has given several lectures. B、The guest lecturer’s opinion is different from Dr. Johnson’s. C、Dr. Johns

M: I hope I won’ t oversleep. I’ ve simply got to catch the first flight to New York.
W: If I were you, I’ d request the wake-up call from the hotel reception.
Q: What does the woman advise the man to do?

W: The visiting economist is speaking tonight, but Dr. Johnson doesn’t seem to think much of him.
M: That’ s because Dr. Johnson comes from an entirely different school of thought.
Q: What do we learn from the woman’ s remark?