many times, he finally understood it. A. Told B. Telling C. Having told D. Havin
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________ many times, he finally understood it.
A. Told B. Telling C. Having told D. Having been told
试题答案
D
解析:
考查非谓语的用法。tell与主语之间的关系是被动和完成的关系，所以用having been done来表示被动和完成。