Who is Sandy's sister?

Who is Sandy's sister? 可以问Sandy's sister is who? —Who’s singing over there — ________ is Sandy’s sister. 1.Who’s singing over there — ________ is Sandy’s sister. 7.Who’s singing over there — ________ is Sandy’s sister. who's singing over there?______is Sandy's sister.A That B It sandy's skirt is much more beautiful than my sister's and ka Is Linda with Nancy?Who is Jim's sister? who is the ( ) girl?She's ( )my sister.填冠词 Sandy's shirt is white. 人称代词和物主代词第一题.who‘s singing over there?- _____ is sandy’s sis Is Jane Amy's sister?Who is Amy's brother?的意思,怎么回答?