Everybody is having a good time,________?(改为反意疑问句)Everybody与Everyone有什么区别?

问题描述:

Everybody is having a good time,________?(改为反意疑问句)Everybody与Everyone有什么区别?

everyone 不能放在句首,除此之外没啥不同
上面那题是,ISN'T HE.因为是单数

is everybody having a good time.
everybody 和everyone 大多数情况下可以通用

Everybody is having a good time,aren't they?

every one不能放句首吗?!为什么?!
第二问同意楼上说的...