问题描述：
( ) 3 The post card is sent by ____.
A.a friend of my father B.a friend of my father's
C.my father friend D.my father friend's
说明为什么啊谢谢
A.a friend of my father B.a friend of my father's
C.my father friend D.my father friend's
说明为什么啊谢谢
问题解答：
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