题目

I appreciated      the opportunity to study abroad two years ago. A.having been given                 B.having given C.to have been given                D.to be given 答案：A 解析: 动词appreciate后接动词ing形式，由于主语I与give之间是被动关系，故应使用动名词的被动式，据此，A项为正确选项。

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