请问“Is this his son?“怎么回答?需要准确答案.

Is this your son? 怎么回答? 这些怎么回答?Is this your son?Is this boy your son?Is Tom your son This is his sister and that is his son.怎么改为复数形式 This is his sister and that,s his son.怎么改为复数形式 is,this your son?作否定句回答 Is this your son?如何做否定回答? Is this your aunt's son?作否定回答 Is this his backpack?肯定回答 Is this his car?否定回答 Is this his car?（肯定回答) She is his son 改错 Is this Tom?怎么回答