These books are my______.B.student's C.students' 为什么不能选B

These books are my______.B.student's C.students' 为什么不能选B These books are my______. are these student's books orthe teacher's books These books are my _____.A.teachers B.teacher's C.teachers' These are the__(students)books Are these students' books?对错 考试模糊核对1.These are my books.Those are___.A.she B.her c.she's I think these are （ ） books.A:his B：he C：they D：she’s 选啥?翻译这 [ ]Are these ________?A,yours books B,books thrirs C,book hi these are my______(open)questions Are these ( ) books?A:they B :them A:What are these?B.:These are books.A:Thanks.