Look,the teacher as well as all his students is playing games on the playground这里为什么用is不用ar

题目

Look,the teacher as well as all his students is playing games on the playground这里为什么用is不用ar
而为什么This is my twin sister Lucy.Both she and I are good at drawing.这里要用are?

答案

as well as 连接两个并列主语,谓语同前面的主语保持一致.
还有比如 with,like,but,except,besides,includ-ing,together with,along with,as well as,more than,no less than,rather than 等,其谓语通常要与前面一个主语保持一致.