非谓语 Lots of rescue workers were working around the clock,sup

问题描述：

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?

1个回答分类：英语 2014-12-16