each可以作宾语的同位语吗?如I have two cats .I like them both..可以用each替换

each of them is a student.用each作同位语 The student have two pens each.中"each"做谁的同位语? 请问each作同位语时,谓语是用单数,还是复数?如We each __English .（是用like还是用likes) 关于同位语,同位语不是一个名词修饰另一个名词吗,那each和both怎么也可以,它们不是代词吗? i have two books.you can use ---of them.(either,each) I have two caps and ____ of them are blue A each B every C b Each of us has a book.= We each have a book.请问下那句each作同位语? 几个英语问题1.反身代词作主语或宾语的同位语,举几个例子,2.each 和 every 的用法区别：each可单独使用, i have two brothers,both_are doctors.为啥不用BOTH OF THEM非要用BOTH I have two cats at home.l like t ver I have two cats and I like________. I invited( ) them.A.each B.both of C.either D.neither to