many times, he finally understood it.
A. Told
B. Telling
C. Having told
D. Having been told
网友回答
A. Told
B. Telling
C. Having told
(答案→)D. Having been told
解析：考查分词做状语。本题中的动词tell与句子主语he构成逻辑上的被动关系，所以可以使用过去分词done或者having been done，这两者都表示被动和已经完成；having been done更强调已经完成。Done更强调被动。句意：已经被多次告知，他终于理解了这一点。故D正确。