听力原文：W: You had met Professor Black before,right？How would you describe his lectures？M

听力原文：W: You had met Professor Black 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？

(16)

A．He is fond of drinking coffee.

B．Professor Black's lectures were interesting.

C．He skipped Professor Black's classes.

D．Professor Black's lectures were boring.