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题型:单选题 题类:常考题 难易度:容易
牛津版(深圳•广州)初中英语九年级下册Module 3 Sport and health Unit 6 Caring for your health单元综合能力检测题(音频暂未更新)
—That's true. Pollution from factories ________ our efforts to make our world cleaner.
— It ______ wood.
—Because my little sister was ill.I had to look after her.
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