Is that your coat?（作肯定回答）

Is that your English dictionary?作肯定和否定回答 Is your coat on the bed?怎么作肯定回答呀 Is this a car(作bou定回答)~2.Are these your books?(做肯定回答） 3.That Is your mother a teacher?(作肯定回答） Is he your friend?（作肯定回答） Is everything in your schoolbag?(作肯定回答） Is this your ruler?作肯定回答 Is that my eraser?(作肯定回答） Is that his ruler(作肯定回答) Is that her eraser?作肯定回答 this is his book that is your ruler 改成一般疑问句并作肯定否定回答 is that your friend?肯定回答是什么