What did the boy often do at school（） A. He was of

单项选择题

W: Don’t you have any good news
M: No. Yesterday I had to stay after school because I was talking during my science teacher’s class.
W: You’d better keep quiet during class.
M: Sometimes I do. The day before yesterday, I was very quiet during my history teacher’s class and I still had to stay after school.
W: Why
M: Because I fell asleep in his class, but it was not my fault. His class Was too boring.
W: I advise you to take school more seriously. If you don’t pass your exam, you’ll have to go out and work as a result.
M: But I think working is more interesting than having boring classes every day.

What did the boy often do at school（）

A. He was often late for school.
B. He often fell asleep in class.
C. He often stayed after school.