”What are thes? Those are books.”有没有错?

”What are thes? Those are books.”有没有错? What are those?________(those)are books. What are those?___They are books.(改为单数句） Those books are for______________. Are those books (your) Those books are for Are those ______ books Are there some books in the schoolbag? 这句话有没有错? what are the boys listen to ther are listen to the radio有没有错 What are those?They're books.They are_____,Grace's. Are you against 有没有错? they are americans有没有错