_________ as a strong-minded person,he was determined to overcome the difficulties by himself.
问题描述：
_________ as a strong-minded person,he was determined to overcome the difficulties by himself.
A.Knowing B.Known C.Having known D.Being known选哪个,为什么
答
选B.known这是过去分词做状语,表示被动和完成.
以意志坚强为人所知,他决定独立克服困难.