______ as the “First Lady of Speech”, Dr Lillian Glass is recognized as one of the world’s leading experts on communication skills.
A. Knowing B. Having known C. Known D. To be known
______ as the “First Lady of Speech”, Dr Lillian Glass is recognized as one of the world’s leading experts on communication skills.
A. Knowing B. Having known C. Known D. To be known
C
know 与Dr Lillian Glass存在被动关系，应用过去分词。故选C。