单项选择题

Questions 9 to 12 are based on the conversation yon have just heard.

A. From a class.
B. From an environmental engineering lecture.
C. From the discussion with the man.
D. From her thinking.

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单项选择题

A. Because her car is being repaired. B. Because she wants to help reduce pollution. C. Because parking is difficult in the city. D. Because the cost of fuel has increased.

A. Because her car is being repaired.
B. Because she wants to help reduce pollution.
C. Because parking is difficult in the city.
D. Because the cost of fuel has increased.

单项选择题

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