题目内容：

一道英语题目:For some people,____(help)people motivates them to keep ___(risk)their lives,……
:For some people,____(help)people motivates them to keep ___(risk)their lives, day after day.
怎么填啊？我看不懂这句话什么意思啊？

优质解答

都填ing形式
第一个是现在分词作主语
第二个是固定用法keep doing
大意：对于一些人来讲乐于助人的动机促使他们日复一日的冒生命危险.