第一节 听下面5段对话，每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置，听完每段对话后，你将有10秒钟时间来回答有关小题和阅读下一小题。每段对话仅读一遍。
1. Where are the speakers ?
A. At a bakery.
B. At a restaurant.
C. At a birthday party.
2. What are the speakers mainly talking about ?
A. An unsuccessful experiment.
B. A new drug.
C. A job opportunity.
3. What happened to the man ?
A. He lost his bag.
B. He missed the bus.
C. He took the wrong bag.
4. What will the speakers do at the party ?
A. Play the guitar.
B. Play the piano.
C. Play the CDs.
5. What time will the plane leave ?
A. At 7:15 B. At 8:15 C. At 9:15
