Is this your sister?与Is she your sister?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 sister,Lily IS she your sister,Lucy? is this your brother?的回答与is this girl your sister?的回答的区别 Is this your sister?英语语法 Is this your sister是什么意思 Is this ( ) your sister,Linda?Yes,She is. Where is your sister?She is _______. This is your sister That is my