Is she your

is she your aunt? She is your sister Is she your gf? Is she your She is your mother' mothre.She is Is she your friend,()? Yes,she is. Is she your grandma对不对 And is she your cousin? is she your cousin?No,()() Is she in your life Is she your grandma?为什么用she? （）is your mother?she is fine Is this your sister?与Is she your sister?区别 Is she your friend的复数形式 Is she your friend?(改为复数句) Is she your mother?复数形式 she is your sister怎么排列 sister,Lily IS she your sister,Lucy?