定语从句 先行词是不定代词时要用that 吗,someone 怎么后面又用who...答:先行词是不定代词anything, everything, nothing,few, all, none, little, some代词时。由every, any, all, some, no, little, few, much等修饰时也用that。someone指人时,后面可以用who。例:who has a sense of duty won”t do such a thing.有责任感的人是不会做这种事的。that的用法...