◎ 题干
If water becomes increasingly scarce in decades ______, water shortage will become a hot issue all over the world.
A.coming B.having come C.to come D.to be coming
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“If water becomes increasingly scarce in decades ______, water shortage will become a hot issue all over the world.A.comingB.having comeC.to comeD.to be coming…”主要考查了你对  【现在分词的被动式】【现在分词】【不定式的被动式】【过去分词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。