of my parents used to travel all over the country on their own.A. BothB. AllC. EitherD. Ea

发布时间：2020-08-21 17:34:40

    of my parents used to travel all over the country on their own.
A. Both
B. All
C. Either
D. Each

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(答案→)A. Both
B. All
C. Either
D. Each
解析：词义辨析。Both两个都； All   所有都；Either两个中的任何一个； Each每一个。句意：我的父母都曾经在全国各地自助旅行。结合语境可知选A.
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