Mrs. sun is a friend of ---------. A.Mary'smother B.mother of Mary C.Mary'smother’s D.Mary

Mrs. sun is a friend of ---------. A.Mary'smother B.mother of Mary C.Mary'smother’s D.Mary mother

c
a friend of one's 句中是Mary 的妈妈的，即Mary's mother's.

A Sun夫人是玛丽的妈妈的一个朋友 再看看别人怎么说的。