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题型：单选题 题类：常考题 难易度：普通
外研（新标准）版2018-2019学年初中英语八年级下册Module 5 Cartoon stories模块过关卷（含听力音频）
— Because I late watching the film Kung Fu Panda Ⅲ last night.
—That's true. Pollution from factories ________ our efforts to make our world cleaner.
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