each student是用is 还是用are

each student是用is 还是用are Each of us ____ different.是用 is 还是are? There is one third student ____ girls.是用is 还是用 are?why? each human being用单数还是复数(is/are)? each of you后面用are还是is every student 是单数还是负数?each student呢 Each student is.Every students are.是这样的形式吗?有什么区别? each of them ,each students,each student 后分别如何接is,are each后的名词用复数还是原型?如：each student each of them is a student.用each作同位语 定语从句的谓语单复数You are a student who is?are clever.到底用is还是are Each of them are/is here.(代词)他们每个人都在这儿.是is还是are