听力原文:W: Peter, your voice teacher called to ask why you were not at practice for your concert program. M: I was there but I was standing with a large group and-tm didn't see me. Q: Why did the teacher call? (15)
A.
Because he wanted to invite Peter to a concert.
B.
Because he thought Peter was not at practice for the concert program.
C.
Because he wanted Peter to join the large music group.
D.
Because he wanted to see Peter at home.