对划线部分提问：my pencil box is under the chair

对划线部分提问：my pencil box is under the chair My baseball is under the chair对划线部分提问 The pencil under the chair is peter's.(对under the chair划线提问) backpack is under the chair.(对划线部分提问) ___________________? The pencil-box is his对划线部分提问 对画线部分提问My baseball is under the chair. (The ping-pong bat)is under the chair.(对划线部分提问)( )( )under t That's my pencil-box.(对划线部分提问) 对划线部分提问 The pen is (red).His baseball is under the chair. it is a pencil box对划线部分提问 There is a knife in my pencil-box.对划线部分提问 My book is under the desk.对划线部分提问 划线：under the desk