He isn't such a man____he used to be.
只能用that而非which:先行词还原时为定语从句的表语,如He isn't the man that he used to be.
such...as...与such...that...的区别在于:as表示”像“,不是同一物。而that表示同一物。

He isn't such a man____he used to be.
只能用that而非which:先行词还原时为定语从句的表语,如He isn't the man that he used to be.
such...as...与such...that...的区别在于:as表示”像“,不是同一物。而that表示同一物。