this is a nice telephone改为一般疑问句并作否定回答

this is a nice telephone改为一般疑问句并作否定回答 This is his telephone number.(改为一般疑问句,并作否定回答） This is a ball.（改为一般疑问句,并作否定回答） This is a photo of Tony's family.（改为一般疑问句,并作否定回答） This is a pencil box改为一般疑问句 并作肯定及否定回答 This is a teacher's desk(改为一般疑问句,并作否定回答.）求教 1、this is a pencil box.(改为一般疑问句，并作否定回答) 1That is a book.(改为一般疑问句,并作否定回答） This is my dictionary.(改为一边 He has a nice backpack 改为一般疑问句并作否定回答 We have a nice model plane改为一般疑问句并作否定回答 I have a nice saIad.（改为一般疑问句并作否定回答） 英语作业,帮帮忙1.This is a ruler.(改为一般疑问句.并作否定回答）____ ____ a ruler?