this is my pencil box.改为否定句

this is my pencil box.改为否定句
this is my pencil box.改为否定句

this is my pencil box.改为否定句
this is not my pencil.

This is not my pencil box.

this isn't my pencil box

This is my pencil改成一般疑问句 This is my pencil.换成一般疑问句. 改为复句this is my pencil box Not this my is pencil是什么意思 is,too,that,pencil,my,and) (is,case,yellow,this,a,pencil(is,too,that,pencil,my,and) (is,case,yellow,this,a,pencil)连词成句 This is my pencil ,and that is your.改病句 This is my pencil case改为复数形式 Is this my pencil case?回答否定回答 This is my pencil（变为复数句） This is my pencil.(改为否定句,疑问句和回答) This is my pencil-box 改为同义句 This is my blue pencil.（改成特殊疑问句） This is my new pencil case 改为一般疑问句 this is my pencil box.改为否定句 this is my pencil的同义句快速回答 This is my pencil case的同义ju this is your pencil my pencil is ____ my pencil case