一、听力（每小题1分，共25分）
听下面5个问题，选出最佳选项。
1. A. It's James.
B. It's Billy's.
C. It's on the desk.
2. A. She is sleeping.
B. She is a teacher.
C. She is well.
3. A. On the third floor.
B. It's very big.
C. He is working in it.
4. A. Never mind.
B. Not a bit.
C. Of course.
5. A. At three in the afternoon.
B. About tomorrow‘s class.
C. In Class One.
