It rained heavily in the south ,( )serious flooding in several provinces.A.caused B.causing

问题描述:

It rained heavily in the south ,( )serious flooding in several provinces.A.caused B.causing
为什么不选caused,如果说causing是主动,那么caused当作完成的意义来讲不可以吗?

causing是动名词用法.可以换成which caused.