题目内容：

听下面一段较长对话，回答以下小题。

1.Why does the man look so tired?

A. He surfed the Internet in the classroom for a long time.

B. He carried the overhead projector from the basement to the fifth floor.

C. He had to go to the classroom on the fifth floor.

2.What does the man think has changed education?

A. The overhead projector.

B. A multimedia classroom.

C. Modern advances.