This is my pencil 改为一般疑问句 并作肯定回答

This is my pencil 改为一般疑问句 并作肯定回答 This is a pencil box改为一般疑问句 并作肯定及否定回答 this is my pencil.(改为一般疑问句并作否定回答） the pencil is in the pencil box 改为一般疑问句并作肯定回答 This is my dictionary.(改为一般疑问句,并作肯定回答） This is my book.改为一般疑问句,并作肯定或否定句回答 This is my T-shirt（改为一般疑问句,并作肯定回答） this is my eraser.(改为一般疑问句) Is it a pencil?(做肯定回答) There is a pencil on the desk?（改为一般疑问句并作肯定回答） This is a pencil case?(改为一般疑问句并做肯定回答） ①This is my sister.(改为一般疑问句并作肯定回答) ②That's my bro This is your pencil.改为一般疑问句,并作简单回答