◎ 题干
—What made little Tony so unhappy and cry in his room?
— ______ to go hiking with his brother.
A.Having not been allowedB.Not having allowed
C.Having not allowedD.Not having been allowed
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“ —What made little Tony so unhappy and cry in his room?—______to go hiking with his brother.A.Having not been allowedB.Not having allowedC.Having not allowedD.…”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。