二、听对话，根据所听内容选择最佳答案。每段对话读两遍。（7.5分）
听第一段对话，回答第1-2小题。
( )1. What happened to Mary yesterday?
A. She had an accident. B. She had a party. C. She had a cold.
( )2. Why did Mary hurt her left leg?
A. Because her bike was broken. B. Because she fell off her bike.
C. Because she ran into the truck.
听第二段对话，回答第3—5小题。
( )3. Where is John going?
A. To Beijing. B. To Hainan. C. To Harbin.
( )4. How long will they spend on the plane?
A. About four hours. B. About five hours. C. About three hours.
