what is the different between 是and四?

问题描述:

what is the different between 是and四?
i need it for my chinese club!AAAAAAAAAAAAAAAAA,i'm sooooo confused with that stupid chinese,mom and dad and big brother they all wants me learn chinese,my bro's chinese is a lot better then me.

是 it means "yes "in english
四 it means "four"in english
I am study english,we can help each other