⑴none 表示"三者或三者以上都不"，all 的否定形式，接可数名词复数时谓语单复数均可，接不可数名词时，谓语用单数，
None of them is /are right. None of the money is yours.
⑵no=not any/not a , no one =nobody 不能与of 连用，作主语谓语用单数，No one is here.
who is in the room?----No one.=Nobody.
what’s in the box?-------Nothing .
How many people are there in the room?-----None.
How much milk do you want ?-------None.
someone,somebody/anyone,anybody/nobody,no one /everyone,everybody
something, anything ,nothing ,everything 。* else和形容词修饰不定代词时，放在不定代词之后 something else’s别人的 something important
every one 每一个，可以指人，也可指物，可以和of 连用，
I kept every one of his letters.
Every one of us likes it.
