Three years has passed since he came to China.中为什么用has

问题描述:

Three years has passed since he came to China.中为什么用has
不是说three years吗

英语中,表示度、量、衡等单位名词作主语时,即使是复数形式,也应看成是一个整体,谓语动词用单数形式.