He is good at English,____ we all know.A that B as C whom D what 选哪个 请解释一下

问题描述:

He is good at English,____ we all know.
A that B as C whom D what 选哪个 请解释一下

B as we all know 固定搭配,翻译为“就像我们知道的那样”

B
as代指前面所说

B as
as,指代第一句那些内容,
他英语很,这点我们都知道