TOEFL Listening: ETS-TOEFL听力机经 - U2LK3LQ2953NZ714P$

What does the employee say are two possible causes of the student's problem? A. His room request form may have been lost. B. Multiple room requests under the same name may have been treated as duplicates. C. Someone in the office may have assigned the same room to more than one person. D. The campus-wide computer problems have significantly affected the room reservation system.