哪位知道too,also和either的区别?

问题描述:

哪位知道too,also和either的区别?

这三个词都表示“也”的意思.
also用在主语之后,too 和either用在名子末尾.
also和too都用在肯定句中,either用在否定名中.
例:
I also have a pen.
I have a pen too.
I don't have a pen either.