◎ 题干
---They like going to sleep early, don’t they?
---Yes. They are accustomed _____very late.
A.to stay up B.to not stay up C.to staying up D.to not staying up
◎ 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“---They like going to sleep early, don’t they? ---Yes. They are accustomed _____very late.A.to stay upB.to not stay upC.to staying upD.to not staying up…”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。