it*s a ruler怎样变成问句

it*s a ruler怎样变成问句 ______?That's my ruler.A.Whose ruler is it?B.What ruler is it? it's a ruler?改复数句 It's a yuor ruler 修改病句 That's n__ a ruler.It's a pencil It's a ruler.对a ruler提问_ is it ...__________?...That,s Tom,s ruler. A .Who ,s tom,s ruler? B Whose ruler is it? C What ruler is that? 请问 应该选哪个? Is it a ruler? What's this in English?用下面哪个句子回答较好?It's ruler.It's a ruler. It's (a blue ruler)?对括号部分提问 It's a ruler .就划线部分提问 IT's a blue ruler改为同义句 It’s a ruler.（改为否定句）. It’s ruler in English. It’s a keyboard.写问句. it's a map.写出问句 Yes,it’s a toilet的问句 It's a cat.的问句是什么?