everybody作为主语时为单数。
everybody：(某个群体中的)每个人;所有人;人们。
例句：
1、
Tonight, I think he proved to everybody what a great player he was .
我认为今晚他向所有人证明了他是个多么出色的选手。
2、
No one is absent. Everybody's here.
人都到齐了，一个也不缺。
3、
Not everybody can do it.
并不是人人全都能做。
4、
She showed me round and introduced me to everybody
她领着我四处看了看，将我介绍给每个人。
5、
We gave a party and everybody came and I think it was a smashing success
我们举办了一个派对，所有人都来参加了。我认为派对非常成功。
