Katia will introduce me to some of her friends,one of whom has been to China several times.这里引导定语从句的关系代词为社么不用WHO呢?不是在从句中作主语吗?

问题描述:

Katia will introduce me to some of her friends,one of whom has been to China several times.
这里引导定语从句的关系代词为社么不用WHO呢?不是在从句中作主语吗?

of whom介宾优先.one of whom整个词才是在句中作主语.