I know ___ teacher.A.each B.every C.everyone D.every one 语法说

B
其实A和B都是可以的,不过我个人觉得B会更好一点·
首先是each和every的区别
each和every都有“每个”的意思,但侧重点不同,each着重个别的情况,every着重全体,有“所有的”意思.
eg. She knows each student of the class. 她认识班级中的每个学生.
She knows every student of the class. 她认识班级里的所有学生.
在这个句子中,侧重说,我认识所有的老师.
接下来是 everyone 和every one
every one 可指人,也可指物．常说：every one of ... 如：Every one of my class knows John, a boy from the USA. Every one of the books on the shelf cost me too much.
而everyone只指人．常翻译成:大家．如：　Is everyone here today? I wish everyone could understand me so well. everyone 等于everybody.　另外：everyone 不可与of 连用．