试题 试卷
题型：单选题 题类：常考题 难易度：普通
广东省深圳市高峰学校2017-2018学年八年级上学期英语期中考试试卷（含听力音频）
-More and more people like me begin to worry about the ______ pollution after the haze (雾霾) appeared in Beijing and some other cities in China.
—Why not do a__________?
—He rides his ________ to work.
—Six. This is America.
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