帮忙选一下，并解释一下涉及的语法问题
58. The speaker, ______ for her splendid speeches, was warmly received by the audience. A)having known B)being known C)knowing D)known
选d， known for her splendid speeches,过去分词短语做定语，相当于非限制性定语从句。who was known for her splendid speeches.a,c 项无被动意义，b项，强调进行，正在被。 不和题意。
答：A 表示伴随状态详情>>
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问：working hard vs. hard working
答：there are no defferent.详情>>
