He didn't finish the work yesterday就是他昨天没有完成工作.
so/neither是不能用来强调他本人,SO和NEITHER是表示另外的人做相同的事,要用其他词来强调.
He didn't finish the work yesterday,so do I他昨天没有完成工作,我也是
neither he nor she finish the work yesterday他们昨天都没有完成工作
both he and she didn't finish the work yesterday他们昨天都没有完成工作
either he or she finish the work yesterday他们之间有一个完成工作
而且,NEITHER 和 nor要一起用.
确实如此是 it's true !吧