请告诉我这句话是什么从句?它的先行词是谁He has endured sacrifices for America that most of us cannot begin to imagine.

请告诉我这句话是什么从句?它的先行词是谁He has endured sacrifices for America that most of us cannot begin to imagine.
请告诉我这句话是什么从句?它的先行词是谁
He has endured sacrifices for America that most of us cannot begin to imagine.

请告诉我这句话是什么从句?它的先行词是谁He has endured sacrifices for America that most of us cannot begin to imagine.
先行词是sacrifices
定语从句是that most of us cannot begin to imagine
关系代词that做imagine的宾语

先行词：endured
是that引导的定语从句