英语选择题第22题选哪一个,要理由!理由!

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ASeen from the top of the mountain,the city is very beautiful.
分析：作为条件/方式状语,主句（主干：主系表结构）主语为the city,是“物”,故状语部分用“省略式”被动语态
还原完整句式（条件状语从句）：When it is seen from the top of the mountain,the city is very beautiful.