The Whites are ________ .A.my father and my mother's friends B.my father's and my mother friendsC.my father's and my mother's friendsD.my father and my mother friends
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A解析解题思路：如果两个名词并列，并且分别有's，则表示“分别有”；只有一个's，则表示“共有”．如： John's and Mary's room(两间) John and Mary's room( 一间)．