these are 后面要加some吗?如these are some books还是these are books

these are 后面要加some吗?如these are some books还是these are books These are some books on the s( ) These are her books.These books are These are t books. These books are _____. These are ()() my books. These books are my______. I need there are some () between these two books.(区别) these books are not ().they only have some Are they your books?还是Are these your books?为什么? Are these books for Lily? --How much are these books?