【答案解析】[解析] 细节题。根据对话可知此人是在询问去Los Angeles的旅行费用，所以答案为B。
[听力原文]
M: Can you give me some information about the cost of a trip to Los Angeles?
W: I'm sorry, sir. I can't give you that information over the phone. My assistant will be able to help you.
单选题
What should the woman do?
A. Leave in 30 minutes.
B. Want to see if everything is ready.
C. Get to the bus stop quickly.
【正确答案】
C
【答案解析】[解析] 细节题。汽车的开动时间是10:30，而此刻已经10:15，这暗示着这位女士应赶快去汽车站，所以答案为C。
[听力原文]
W: I need to catch the bus and it leaves at 10:30.
M: You'd better hurry. It's already 10:15.
单选题
Where are the two speakers?
A. In a restaurant.
B. On a farm.
C. At the man's home.
【正确答案】
A
【答案解析】[解析] 推理题。从对话中知道男士要的是苹果汁和鸡肉三明治，可推断他此时在餐馆，所以答案为A。
[听力原文]
W: What would you like to have, sir?
M: Well, I'd like to have an apple juice and chicken sandwich.
单选题
When can the student leave?
A. The student can't leave unless he has put everything back in the
cupboard.
B. The student can leave after he turns off the electricity.
C. The student can leave after he has tidied the lab.
【正确答案】
C
【答案解析】[解析] 细节题。can we句型对别人表示发问或请求，文中老师要求打扫过实验室再走，所以答案为C。
[听力原文]
M: Can we leave the lab now, teacher?
W: No, you must tidy the lab before you leave.
单选题
What can we learn from the dialogue?
A. John was expected to come yesterday.
B. John didn't come because he was iii.
C. The man was John's father.
【正确答案】
A
【答案解析】[解析] 推理题。I'm sorry表示对某事感到遗憾，从对话中知道John本打算去，但是由于妈妈生病而未能去，所以答案为A。
[听力原文]
W: Why didn't you come here yesterday, John?
M: I'm sorry, madam. My mother was ill.