It is a ruler.(变为否定句）

It is a ruler.(变为否定句） That is a ruler 变为否定句 It’s a ruler.（改为否定句）. Is this a ruler?怎么改成否定句 [紧急求助]This is a ruler.改为否定句 英语改否定句 Is this a ruler 如何改 Is it a ruler? It's a car.变为否定句 That is her ruler.(否定句） That___ ____her ruler. this is my ruler改成否定句 This is my ruler (改为否定句) Is this ruler?(改为否定句） This is his ruler.(改为否定句) It is a bus.（NO（变为否定句和一般疑问句.按要求回答） it,is,pink,a,ruler 怎么样连词成句 It is my pencil sharpener.变为否定句_______________________________._______________________________? It's my pencil case 改为否定句This is her ruler 改为一般疑问句 That s a ruler 改为否定句