Is that yours__(回答问题）

Is that yours__(回答问题） his answer is right,but yours__(完全错了）.怎么填, That is a ruler 回答 Is that your sister?,回答 Is that his father?回答 who is that怎么回答 who is that?如何回答 It is likely that...的that能否省略?回答回答, 问个英语问题:在饭店点菜时,服务员问:Is that all?回答是:Yes,that's all.还是No,that'sall. what is this 回答 与what is that 回答 关于英语学习的问题：请看问题补充.Is that your uncle?回答用yes,it is.为什么不是yes,he is.1 .Is that your uncle?回答用yes,it is..Is this your uncle?回答用yes,it is..人教版课本上面2个都是用yes ,it is.而不是yes What is that in English?怎样回答 is that your ruler 做肯定回答 Is that OK with you 的回答 Is that an eraser?的回答 is that your pencil?的否定回答 is that a car?怎么回答? Is that an English book?如何回答