When (see) ______ through a telescope, the sun appears darker near the edge. see

游客2023-09-25 47

问题 When (see) ______ through a telescope, the sun appears darker near the edge.

选项

答案 seen

解析分词作方式状语，需与主语保持态的一致。see和the sun呈动宾关系，所以sun作主语时，see应用过去分词。句意：从望远镜里看太阳，边缘部分要暗些。

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