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________ can cause air pollution, so we’re encouraged to go on bikes or foot.


  1. A.
    Keeping lights on when sleeping
  2. B.
    Riding in cars
  3. C.
    Using paper towels or napkins
  4. D.
    Recycling paper
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Dear sir
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【小题1】Students use mobile phones to_________.

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科目:初中英语 来源:2011年四川省达州市中考英语试卷 题型:完型填空

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