______ at from outer space, the Earth is just like a ball hanging in the universe.

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问题 ______ at from outer space, the Earth is just like a ball hanging in the universe.

选项 A、Having looked
B、Looking
C、Looked
D、Having been looked

答案C

解析 根据选项来看,本题中的前半句为分词短语作状态语,分词短语作状语时,其逻辑主语要与主句主语保持一致。本题中分词动作与主句的谓语动作应该是同时的,不能用现在分词的完成式,因而可以排除A和 D,而且,对于主句主语the Earth来说,分词的动作是被动的,所以,本题应选C。
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