Is this your sister 与Is she your sister?的区别

Is this your sister?与Is she your sister?区别 Is this your sister 与Is she your sister?的区别 Is she your sister? She is your sister Is this your sister is this your brother?的回答与is this girl your sister?的回答的区别 sister,Lily IS she your sister,Lucy? Is this your sister?英语语法 Is this your sister是什么意思 Is this your sister?的答语是? Is this your sister的复数句? is this your sister的答语是