◎ 题干
Edison, who was considered ______ the bulb, is considered ______ the greatest inventor of the last century.

A. to invent; as
B. inventing; to be
C. having invented; for
D. to have invented; /
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“Edison, who was considered ______ the bulb, is considered ______ the greatest inventor of the last century. [ ]A. to invent; as B. inventing; to beC. havin…”主要考查了你对  【不定式的完成式】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。