There is a knife in my pencil-box.对划线部分提问

There is a knife in my pencil-box.对划线部分提问 There's a knife in the box.(对划线部分提问）,划线的是a it is a pencil box对划线部分提问 That's my pencil-box.(对划线部分提问) There is a ball in the box.(对划线部分提问 a下划线) there is a shirt in the box对划线部分提问画a shirt The pencil-box is his对划线部分提问 对划线部分提问：my pencil box is under the chair 划线部分提问 There is a pen in the pencil-case.(划线部分是a) My eraser is in the pencil box.对画线部分提问 there is a pen in the pencil box 对a提问 I have two rulers in my pencil—box.对划线部分提问 （）（）rulers do you