That is my a pencil-box.改病句

That is my a pencil-box.改病句 This is my pencil ,and that is your.改病句 That is a red pencil box.() that is her pencil—box(改复数句) my pencil-box is new,怎样改同义句 That is my pencil box改为一般疑问句 this is a new pencil-box改我一般疑问句 The box is very heavy that nobody in my class can lift it病句改 That is a pencil box 这句话哪儿错了 Your pencil is shorter than my 改病句 That is my a yellow pencil sharpener.改错怎么改啊! my pencil box is in my