A book on the desk.改病句

A book on the desk.改病句 i have a book on the desk clapped a book on the desk. is there a book on the desk? _____ a book on the desk. There is a picture book on desk 怎么改 A book is on the desk和On the desk is a book The book on the desk a book under the desk on the floor,on the floor修饰desk还是什么? iI found a book on the desk.（on the desk作状语）.on the desk作状语修 A book and a pen____ on the desk. There is a book on the desk.划线部分提问,划线部分是on the desk.