Question

【题目】______ many times, he has already known how to do it.

A. He had been told B. Having been told

C. Though he had been told D. Having told

Answer 1

【答案】B

【解析】

考查非谓语动词。句意：告诉他许多次了，他已经知道如何做了。分析句子结构可知，空格处是状语，tell与主语he是被动关系，用被动式；结合句意，“告诉”发生在“知道”之前，用完成式，故填Having been told；C项句意不符，A项缺少连词。故选B。