◎ 题干
_____ from the top of the tower, the south foot of the mountain is a sea of trees.

A. Seen
B. Seeing
C. Having seen
D. To see
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“_____ from the top of the tower, the south foot of the mountain is a sea of trees. [ ]A. Seen B. Seeing C. Having seen D. To see …”主要考查了你对  【过去分词】  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。