定语从句修饰指人的不定代词,如：someone,anybody等词时,关系词用that,who,whom还是都可以用?

只能用that 　　定语从句只能“that”引导的情况：
1、先行词是最高级或被最高级修饰.
　　This is the most interesting book that l have ever read.
　　2、先行词是序数词或被序数词修饰.
　　The second foreign country that l expect to visit is Greek.
　　3、先行词是不定代词时,如"all、few、little、much、anything、nothing、something"
　　This is the very good dictionary that I want to buy.
　　4.、先行词既有人又有物时
　　Can you remember the scientist and his theory that we have learned?
　　5、先行词被“only”、“the every”、“no”、“one of”等修饰
　　He is the only person that l want to talk to.
　　6、在以“which”、“who”、“whom” 引起的问句中,为避免重复,常用"that"
　　Who is the man that is standing there?Which is the T-shirt that fits me most?
　　7、“there be”句型中
　　8、先行词在主句中作表语,或者关系代词本身作从句的表语时宜用“that”
　　“that”在作宾语时可省略.