非谓语 Lots of rescue workers were working around the clock,supplies to Yushu,Qinghai Province after the earthquakeA.sending B.to send C.having sent D.to have sent为什么不是B呢,不定式表目的啊,夜以继日的工作目的是为灾区提

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非谓语 Lots of rescue workers were working around the clock,supplies to Yushu,Qinghai Province after the earthquakeA.sending B.to send C.having sent D.to have sent为什么不是B呢,不定式表目的啊,夜以继日的工作目的是为灾区提
非谓语
Lots of rescue workers were working around the clock,supplies to Yushu,Qinghai Province after the earthquake
A.sending B.to send C.having sent D.to have sent
为什么不是B呢,不定式表目的啊,夜以继日的工作目的是为灾区提供物资啊?选A的原因是什么?

非谓语 Lots of rescue workers were working around the clock,supplies to Yushu,Qinghai Province after the earthquakeA.sending B.to send C.having sent D.to have sent为什么不是B呢,不定式表目的啊,夜以继日的工作目的是为灾区提
A
这里是 现在分词 表主动 表伴随动作 做 结果状语
他们夜以继日的工作,把物资送到灾区
如果用不定式不是符合语意 不定式 表目的 表动作没有开始做

不定式是表目的
但是这个句子里没有主语啊。只能用现在分词做主语表达。
如果没有那个逗号的话,是可以用不定式的。

因为前面有逗号