Mary's sister buys some fruit还是fruits?

Mary's sister buys some fruit还是fruits? mary's sister's sister of mary's 那个对 ( ) 2 This is my____dictionary.　　A.sister Mary B.sister's C.sister,Mary's D.sister's Mary's( ) 2 This is my____dictionary.　　A.sister Mary B.sister's C.sister,Mary's D.sister's Mary's为什么呢 This is my ( )dictionary.A.sister Mary B.siter's C.sister Mary's D.sister's Mary's This is my____dictionary.A.sister Mary B.sister's C.sister,Mary's B 为什么不对? is,twelve,Mary’s,sister?排列 This is my ( )dictionary.A.sister MaryThis is my ( )dictionary.A.sister Mary B.sister's C.sister Mary's D.sister's Mary's This is my____dictionary.A.sister Mary B.sister's C.sister,Mary's D.sister's Mary's为什么选C,不选B或D. The girl talking to Mary is a friend of ( ) AThe girl talking to Mary is a friend of ( ) A.Mary's sister B.Mary sister's C.Mary's sister's D.sister of Mary's This is my ( )dictionary.A.sister Mary B.siter's C.sister Mary's D.sister's Mary's顺便说下原因. 名称所有格This is my___ dictionary.A.sister's B.sister's Mary's The girl talking to Mary is a friend of ________.A.Mary’s sister B.Mary sister’s C.Mary’s sister’s D.Sister of Mary’s到底选什么啊? The girl talking to Mary is a friend of＿. A.Mary's sister B.Mary sister's C.Mary's sister's D.sister of Mary's （答案并解释其原因!） 40.This is my____ dictionary.A.sister Mary B.sister’s C.sister Mary’s D.sister’s Mary’s40.This is my____ dictionary.A.sister Mary B.sister’s C.sister Mary’s D.sister’s Mary’s这个选C,为什么不选B? a friend of Mary's sister 与 a friend of Mary's sister's 有什么区别 说明为什么选This is my _____ dictionary.A sister's B sister,Mary's Mary's shirt is the same as her(sister) You are Mary's sister,right?(同义句)