◎ 题干
Seeing their teacher _______ into the classroom, they stopped _______ at once.
A.walk; tellingB.entering; to speak
C.enter; to tell D.walking; talking
◎ 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“Seeing their teacher _______ into the classroom, they stopped _______ at once.A.walk; tellingB.entering; to speakC.enter; to tell D.walking; talking…”主要考查了你对  【不定式】【分词】【动名词】  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。