单项选择题

Passage One Questions 26 to 28 are based on the passage you have just heard.

A．They pollute the atmospheric environment.
B．They produce dangerous gases.
C．They stop the sun’s heat reaching the earth.
D．They cause global warming.

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单项选择题

A．At a hotel.B．At a cinema.C．At a theatre.D．At an airport.

A．At a hotel.
B．At a cinema.
C．At a theatre.
D．At an airport.

填空题

subjective

Passage One Questions 26 to 28 are based on the passage you have just heard. 您的浏览器不支持 audio 元素。

Passage One Questions 26 to 28 are based on the passage you have just heard.