Mary's friend often ----(watch) TV with her.横线上添watch还是添watches

Mary's friend often ----(watch) TV with her.横线上添watch还是添watches dad,t____is mary.she's my friend Mary is a friend of Jim's与Mary is a friend of Jim的区别 a friend of Mary's sister 与 a friend of Mary's sister's 有什么区别 Mary is my good friend.I often telephone her.（合并成一句）改成I often keep ----- ------ with my good friend Mary------ -----. 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 mary is studying ()her friend's home填介词 Mrs.Black is a friend of ____?A.Mary's mother's B.Mary's mother C.mother's of Mary D.Mary mother's 为什么? Miss Smith is a friend of A．Mary's mother's B．Mary's mother C．Mother's of Mary D．Mary Mother's Miss Green is a friend of _______.A.Mary’s mother’s B.Mary’s mother C.Mary mother’s D.mother’s of Mary Mr Black is a friend of ____. A. Mary's mother B.Mary's mother C.mother's of Mary D.Mary's mother Mary is my good friend.I often telephone her 合并一句 已给 Jack and his friend often (s ) in the pool my friend Mary Mrs,Sun is a friend of ,A,Mary’s mother,B,mMrs,Sun is a friend of ,A,Mary’s mother,B,mother of Mary,C,Mary ’s mother’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!） 玛丽的妈妈的朋友,可以说MARY'S MATHER'S FRIEND吗