who swims in the pool还是who swim in the pool也就是who swims in the pool every morning还是who swim in the pool every morning到底用不用第三人称单数形式嘛
问题描述：
who swims in the pool还是who swim in the pool
也就是
who swims in the pool every morning
还是
who swim in the pool every morning
到底用不用第三人称单数形式嘛
答
who swims in the pool every morning如果不能从前文推测出是多人,一般用第三人称单数