Miss Smith is a friend of .A. Mary’s mother’sB. the mother of MaryC. mother of Mary’sD. Ma

Miss Smith is a friend of .
A. Mary’s mother’s
B. the mother of Mary
C. mother of Mary’s
D. Mary’s of mother

(答案→)A. Mary’s mother’sB. the mother of MaryC. mother of Mary’sD. Mary’s of mother解析：双重所有格用法。

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