27.Miss Smith is a friend of ______.

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27.Miss Smith is a friend of ______.
A.Mary‘s mother’s B.Mary‘s mother
C.Mother’s of Mary D.Mary mother‘s

答案是A.
首先of后面要跟一个可以充当宾语的成分,这样语法才对.而mother's是名词形式.
人称的变化如下：主格 he/she 宾格（相当于名词）him/her 所有格（相当于形容词）his/her
然后我们平时很常用的是a friend of mine 这个mine就是一个代词可以充当宾语

1．Miss Smith is a friend of _____ ． miss smith is a friend of mary‘s mother’s Miss Smith, their new teacher of ________ English, is ______ Miss Smith is a friend of A．Mary's mother's B．Mary's mother 1．Miss Smith is a friend of _____ ． 0 | 解决时间：2010-11-5 14:49 Miss Green is a friend of ____. Mr Black is a friend of ______. Lily is a friend of ______. Miss Gao is a very s______ friend of mine Miss Green is a good friend of of 在这里的意思 This boy is a friend of ______(I). miss smith,their new teacher of ___english,is___europen a a,