Fires swept through the area,where most houses,----mostly of wood,were burnt to the ground.A,being

题目

Fires swept through the area,where most houses,----mostly of wood,were burnt to the ground.A,being B,were C, had been D,having been,答案是A,请解释各选项,谢谢

答案

这里说的是houses 大部分都是木制的,being在这里为 动名词引导后置定语,跟其句中他任何时态都没关系.
I love the girl giving away money along the street.
我喜欢这个 沿街发钱的 女孩.修饰女孩,是沿街发钱的.