◎ 题干
Susan was just  _____ at those pigeons at the time, so I don’t think she saw me.
A.spottingB.watchingC.glaringD.staring
◎ 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“Susan was just _____ at those pigeons at the time, so I don’t think she saw me.A.spottingB.watchingC.glaringD.staring…”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。