【題目】__________ is believed that Edison invented the light bulb.

A. It B. That C. This

【答案】A

【解析】句意:人們相信愛迪生發(fā)明了電燈泡。考查固定用法It is believed that表示人們相信,這里的that后面的從句是真正的主語。It是形式主語。相似的還有It is said that據(jù)說。故選A。

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