go 和come后面什么时候加to ?什么时候不加to ?

GO,COME为不及物动词时,后面加地点名词或行为动词时,要加TO.
He goes to school.
He comes to get the tickets.

当后面加地点副词时,不用加TO.
When do you go home?
Come here, let me show you.

需要指明目的地或行动目的的时候就加to,否则不加.

I'm going to school.
He's coming to meet me.

I'll come soon.
He'll go soon.