TOEFL Listening: ETS-TOEFL听力机经 - 1ASUNSZ44MX9D77EP$

What does the student imply about his roommates? A. They do not take their studies as seriously as he does. B. They are also unhappy with their living situation. C. They are unaware of the rules regarding resident halls. D. They are unwilling to discuss the student's complaint.