-Is this your grandmother?做肯定回答

-Is this your grandmother?做肯定回答 ..Is this your grandmother?做肯定回答 做肯定回答（英语）Is this your grandmother Is this your sister?如何做肯定回答? Is this your English teacher?(做肯定回答） Is This your pencil box?做肯定回答 Is this boy your brother?(做肯定回答) Is this your ruler?作肯定回答 Is this your umbrella?肯定回答是什么 Is this your book?的肯定回答 Is this your dictionary肯定回答 Is this your father?肯定回答是什么