those 作先行词是关系词没有特别的要求,指人作主语 关系词用who 或that都行
指物时,作主语,宾语,表语时,用关系词that 或 which
不论指人还是指物,作定语时,用关系词 whose
those whose house were destroied in the earthquake是对的
eg Those that /which I like best are watermelons and pears