This is my pencil.(改为否定句,疑问句和回答)

This is my pencil.(改为否定句,疑问句和回答) this is my pencil.(改为一般疑问句并作否定回答） It is my jacket.(改为否定句,疑问句和回答) 把This is a pencil.改为一般疑问句和否定句 This is his pencil sharpener 改为一般疑问句和否定句怎么改? this is my pencil box.改为否定句 This is his pencil case改为一般否定句 This is my eraser 改为否定句 He is a boy的否定句和一般疑问句和肯定回答和否定回答.It is my pencil恩威并举和一般疑问句和否定 This is his pencil.(改为否定句) this is my handbag.that is his pencil.都该疑问句,肯定回答和否定回打 改为一般疑问句This is a nice schoolbag.改为否定句That's your pencil box. This is my book.改为一般疑问句,并作肯定或否定句回答