they are puuting 代词 books on the desk

they are puuting 代词 books on the desk the books on the desk are not mine;they‘re______ the------- [teacher ]books are on the desk whose are the two books on the desk? they are 解释一下 Are the books on the desk?作肯定回答,Yes,they are .而不是,Yes,there There are some books on the desk Are there any books on the desk? there are TWO BOOKS on the desk there books on are desk the any Where are these/those books?的回答不是They are on the desk吗? These are my sketch-books.They are on the desk.怎么样两句并一句? are they on the desk just now