It is a ruler(改为一般疑问句)怎么写?

It is a ruler(改为一般疑问句)怎么写? It is her ruler改为一般疑问句, This is a ruler 改为一般疑问句 This is a ruler改为一般疑问句 That is a ruler.改为一般疑问句 It is a ruler. (改为一般疑问句,并作肯定回答) 求教! It is her ruler(改为一般疑问句） Is it a ruler? It's her ruler改为一般疑问句 It's my pencil case 改为否定句This is her ruler 改为一般疑问句 This is my ruler.(改为一般疑问句) That‘s a ruler.(改为一般疑问句) Is this your book?(作回答) It is my ID card(改为否定句) 把英文陈述句改为一般疑问句 1.that is a blue ruler 2.it is his pencil 3.this is her pencil-case4.that is his green cup Is it your ruler?改为复数句 I have a ruler?改为一般疑问句 This is my long ruler.改为一般疑问句,后作肯定回答 回答：Is this my long ruler?Yes,it is. There is a ruler in my pencil box.（改为一般疑问句） That is a ruler .改为否定回答