Question

【题目】_______ many times, but he still couldn’t understand it.

A.Having been toldB.Though he had been told

C.He had been toldD.Having told

Answer 1

【答案】C

【解析】

考查句子结构。句意：告诉过他很多次了，但他仍然不能理解它。根据语境中的连词but可知，B项错误，因为在英语的表达习惯中，关联词不成对使用；同时根据并列连词but之后的句子可知，前面是完整句子，排除非谓语动词A/D。故选C。