he is my son, against whom a better son dose not exist.

he is my son, against whom a better son dose not exist. He is my son,_____ a better son does not exist.A.but B.than He is my son,---------a better son does not exist.(为什么横线上填th he is my son,_____ a better son does not exist. He is a teacher than whom a better dose not exist. Everything is just (as) we left it He is my son,(than whom) he is my father's son.but he's not my brother.who is he? Question:He is my father's son.But he is not my brother.Who The boy you laughed at is my son.The son at whom you laughed Zhang ping is a boy.He is every storong.He is my son.But I'm _____boy is my son. He is my father,but I'm not his son,I am his