题目内容

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 D. to run; seeing

C 【解析】句意:当我们正在操场上跑步的时候,Jack突然停止了跑步,躺在地上,因此我们都停下来去看看他怎么了。to run跑,动词不定式;running动名词;to see动词不定式,去看;seeing动名词。stop doing sth.停止做某事;stop to do sth.停下来去做某事。根据句意可知应选C。
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