It was said (that) (that) was all (that) he said.But I only agreed with most.

问题描述:

It was said (that) (that) was all (that) he said.But I only agreed with most.
原题是这样的.我不懂三个that的用法,意义,可不可以替换呢?

第一个that是第一个said 后面的宾语从句引导词,不能替换,第二个that是从句的主语可以用which替换,第三个that是后面那个said的宾语,可以省略.