◎ 题干
While we were running on the playground, Jack suddenly stopped ________ and lay on the ground,
so we all stopped ________ what was wrong with him.
[     ]
A. to run; to see
B. running; seeing
C. running; to see
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“While we were running on the playground, Jack suddenly stopped ________ and lay on the ground, so we all stopped ________what was wrong with him. [ ]A. to run;…”主要考查了你对  【不定式】【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。