He is the only person ( )the answers.空里是填knows 还是to know

问题描述:

He is the only person ( )the answers.空里是填knows 还是to know

knows

都不是 who knows

我觉得填who knows

who knows
不能只填knows, 因为你句子中已有is作为动词。如果填knows, 你就有两个动词了。

填konws
这是省略了who的句子,完整应该是He is the only person who knows the answers

knows
因为person 后面是个定语从句