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题型：单选题 题类：常考题 难易度：普通
外研版英语九年级上Module 12 Unit1 If everyone starts to do something, the world will be saved.同步练习
pollute, hopeless, less, enemy, recycle
{#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#}hiding the fact people will know it sooner or later
{#blank#}1{#/blank#} {#blank#}2{#/blank#}good idea that is!
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