we hand to stay at home_____a heavy rain.A.because of B.because C.for D.since 为什么选?

问题描述:

we hand to stay at home_____a heavy rain.A.because of B.because C.for D.since 为什么选?
because&because of 有什么区别?

A
because后面加句子
because of 后面加短语
)which&at whitch有什么区别?