His backpack is on the on the desk对on the desk画线提问

His backpack is on the on the desk对on the desk画线提问 the clock is on the desk.对画线部分提问 His backpack is （under the desk）对括号进行提问 Are your watches on His computer is on the desk.对on the desk提问 the pictures are on the desk对画线部分提问(画线：on the desk) His book is (on the desk)对括号里提问 his eraser is (on the desk)对括号部分提问 His book is –——on the desk 对画线部分提问 the book on the desk are mine对画线部分（on the desk)提问 His schoolbag is on the desk on the desk 是划线的部分 对划线部分提问 is t His book is on the desk.(划线提问His book the tv set on the desk is new对on the desk 提问