填空题 John ran up to him and helped him to stand up.
______ up to him, John helped him to stand up.

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【正确答案】 1、Running    
【答案解析】[名师解析] 现在分词可以放在句首，引导一个表示时间、原因、伴随状态的状语。 Running引导的是一个说明主句谓语动词helped的时间状语，表示，running动作在先，help动作在后。