he is the only one she is the only one who's studying french关系代词为什么用who先行词被the only修饰时不是用that吗

问题描述:

he is the only one she is the only one who's studying french关系代词为什么用who
先行词被the only修饰时不是用that吗

先行词为“物”。须用that,先行词为“人”,不受影响!

因为主语是人。

这里用who和that都可以.先行词被the only修饰时用that,是指先行词是物的情形,本题的先行词是人,不在此列.