Susan has measles,so she calls the doctor.前半句已经有第三人称单数,为何call还要加S?

问题描述:

Susan has measles,so she calls the doctor.前半句已经有第三人称单数,为何call还要加S?

第三人称单数和 主句从句没有关系 只和主语是单数复数有关