This is a pencil box改为一般疑问句 并作肯定及否定回答

This is a pencil box改为一般疑问句 并作肯定及否定回答 1、this is a pencil box.(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 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否定回答） 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） Miss Liu is a teacher.改为否定句,并作肯定回答.改为一般疑问句,并作否定回答 It is a pen.改为否定句,并作肯定回答.改为一般疑问句,并作否定回答 this is gina改为一般疑问句并作肯定或否定回答 This is aruler.（改为一般疑问句,并作肯定和否定回答） This is book改为一般疑问句并作肯定和否定回答.