A、He liked to drink two cups of coffee before the professor’s class. B、One cup of coffee is enough for him to keep awake in the

W: I forgot to tell you that Fred called last night to borrow your sleeping bag.
M: Oh, I saw him at the gym this morning and he didn’t say anything. So he must have asked somebody else.
Q: What does the man imply?

W: You had met Professor Johnson before, right? How would you describe his lectures?
M: Well, let me put it this way: I could never stay awake in one of his classes without first drinking at least two cups of coffee.
Q: What does the man imply?