the pencil is mine .改为一般疑问句并作肯否回答

the pencil is mine .改为一般疑问句并作肯否回答 the pencil is in the pencil box 改为一般疑问句并作肯定回答 the eraser (in the pencil case) is (pink) (改为一般疑问句并作出肯定、否定回答 There is a pencil on the desk?（改为一般疑问句并作肯定回答） The schoolbag is mine.改为一般疑问句 This is a pencil case?(改为一般疑问句并做肯定回答） 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 并作肯定回答 This is your pencil.改为一般疑问句,并作简单回答 1、this is a pencil box.(改为一般疑问句，并作否定回答) Lily is looking fou her pencil.(改为一般疑问句,并作否定回答) this is my pencil.(改为一般疑问句并作否定回答）