I own over a thousand books,they cover every inch of floor space帮忙造个句

问题描述:

I own over a thousand books,they cover every inch of floor space帮忙造个句
I own over a thousand books,they cover every inch of floor space
这句话如果用because .which 造句,怎么造句

Because I own over a thousand books,which cover every inch of floor space.
*which 后面的 they 不用加