this is my sister's twentieth birehday的同义句急

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 sister's) sweater 对划线部分提问 this is my sister's twentieth birthday同义句 This is my sister's room改为否定句This is my sister;s room 改为否定句 This is my ( )dictionary.A.sister Mary B.siter's C.sister Mary's D.sister's Mary's 说明为什么选This is my _____ dictionary.A sister's B sister,Mary's This pink coat is my twin sister's对twin sister's提问 （this）is my sister This is my room,that is my sister's room 哪里错了 My mother's s.is my sister. aunt确切意思是什么this is my aunt — （ ) A . my mother‘s biother B. my mother's sister C. my sister's mother D. my mother 为什么 this is my sister还是she is my sisterHi,David,____my sister,Jane.A it‘s B this is Che is D she is Whose book is this,It’s _.My parents bought it for my sister and me. Yes.look!This is my_________.She's my father's sister. 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. This bike is mine.That one is my sister`s.Our bike are d____. this is my sister.s is ten.根据句意及首字母提示完成单词 What ___ this ring?Is it yours,too?No,it is my sister's.