Is this your brother和Is this your sister的回答,

Is this your brother和Is this your sister的回答, is this your brother?的回答与is this girl your sister?的回答的区别 Is this your brother? Is this your sister Is this boy your brother作回答 Is this your brother?(做否定回答) is this your brother?如何回答? Is this your sister?否定回答 is this your sister 的肯定回答是? Is this your sister?的肯定回答有哪几种? Is this your sister?英语语法 Is this your sister是什么意思