______ many times，he finally understood it． A．Told B．Telling C．Having told D．Having been told
2023-01-02 17:07:48 57次 2013届山东省高二下学期期末考试英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
______ many times，he finally understood it．
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A．Told
|
B．Telling
|
C．Having told
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D．Having been told
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