第二节对话理解，听下面的对话，从题中所给的A、B、C三个选项中选出最佳答案。听每段对话前，你将有时间阅读各个小题，每小题5秒钟；听完后，种小题将给出5秒钟的作答时间（共10小题，计10分）
6. Where are they probably talking?
A. On the playground B. In the hospital C. In the zoo
听下面的对话，回答第7小题。
7. What did Tim do after seeing the accident?
A. He phoned the police station
B. He phoned the TV station.
C. He phoned the radio station.
