Are they your books?还是Are these your books?为什么?

问题描述:

Are they your books?还是Are these your books?为什么?

Are these your books?

都可以吧应该

Are they your book?是不合适滴 如果把这句话变成陈述句就是
They books are yours.没有这么说的 呵呵

these
习惯这么使用,英语没那么多原因,语言是说出来的

Are these your books?They 不能指物,用these指代这些书