it was because the heavy rain,we could dnt go out.

问题描述:

it was because the heavy rain,we could dnt go out.
这句话为啥要有was?
我知道这句话的意思,只是觉得句子结构好像不应该有WAS啊!

如果没有was,整个句子的谓语就没有了
it是形式主语(we could not go out是主语从句即真正的主语),还有这句中间不应该有逗号
because the heavy rain在这里是错的,正确的应该为“because of the heavy rain”这个介词短语做表语,was是谓语
正确的句子为It was because of the heavy rain that we could not go out.