专四

单选题根据听到的内容,回答题Why did the woman decide to ride the city bus?

A. Her car is being repaire
B. She wants to help reduce pollutio
C. Parking is difficult in the cit
D. The cost of fuel has increase

参考答案:B进入在线模考
听力材料

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1According to the woman, the city should __________ to reduce the pollution caused by cars and buses.

A. install many pollution filters
B. spray a new material on engines
C. reduce the use of buses
D. cut down the use of fuel

2What is the conversation mainly about?

A. A new fuel for buse
B. The causes of air pollutio
C. A way to improve fuel efficiency in buse
D. Careers in environmental engineerin

3根据听到的材料,回答题What is the man’s problem?

A. He is always laughing at other student
B. He was constantly talking with other students in clas
C. He disturbed the teacher by asking question
D. He is always showing off in the classroo