many times , he still couldn’t understand it．
A. Told
B. Having been told
C. He was told
D. Though he had been told
网友回答
A. Told
(答案→)B. Having been told
C. He was told
D. Though he had been told
解析：考察非谓语动词.句意:已经被告诉了多次,他仍旧不能理解它.现在分词表示正在进行的伴随性动作,和句子主语是主谓关系,结合语境可知选B.