◎ 题干
Mary seems _______ the bad news, for she looks nice and happy.  
A.not to have learnedB.not to be hearing
C.not having learnedD.not to be
◎ 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“Mary seems _______ the bad news, for she looks nice and happy.A.not to have learnedB.not to be hearingC.not having learnedD.not to be…”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。