听一段材料，回答下面几个小题。
Why is the man late?
A.He forgot to look at his watch.
B.The maths teacher kept him in her office.
C.The maths class lasted longer than it should.
What do we know about the students?
A.They don’t mind the teacher’s keeping talking.
B.They don’t want to hurt the teacher.
C.They prefer to learn more maths.
What is the man most likely to do?
A.Talk to the maths teacher.
B.Remain silent about the problem.
C.Refuse to go to the maths teacher’s classes.