How引导的主语从句____ the information was stolen or deliberately leaked _英语解答

How引导的主语从句
____ the information was stolen or deliberately leaked to the press is not clear.
正确答案为Whether,请问为什么How不行?

人气：240 ℃　时间：2020-01-29 21:53:00

解答

意思理解上how也是可以的,可是后面用了or .而wether 和or 搭配