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题目内容
（郑州工程技术学院-大学英语（2）.）
22.
He appreciated ____ the chance to deliver his thesis in the annual symposium on Comparative Literature.
(A) having given
(B) to have been given
(C) to have given
(D) having been given
He appreciated ____ the chance to deliver his thesis in the annual symposium on Comparative Literature.
(A) having given
(B) to have been given
(C) to have given
(D) having been given
参考答案
