many times , he still couldn’t understand itA. ToldB. Having been toldC. Having toldD. H

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A. Told
(答案→)B. Having been told
C. Having told
D. He had been told
解析：考查分词用法。He与tell之间构成被动关系，而且多次被告诉是已经发生的事情，所以B正确。B选项更强调已经完成，A选项更多强调被动。根据下文的still可知这里应该强调已经完成。句意：已经被多次告知，但是他仍然不能理解。