who的特殊疑问句的谓语动词用第三人称单数吗?为什么?

问题描述:

who的特殊疑问句的谓语动词用第三人称单数吗?为什么?

WHo后面可跟单数或复数谓语.视情况而定如
who is the man that stands there?
Who are the people that are present the meeting ?