______ from the plane ,the Great Wall looks like a long fence on top of the winding mountains.

问题描述:

______ from the plane ,the Great Wall looks like a long fence on top of the winding mountains.
A To see
B to be seen
C seen
D being seen

答案选C
这里考察过去分词短语做状语,see 和主句主语the Great Wall 有逻辑上的被动关系,所以C是对的
而选项中B和D也表示被动,不过不定式作状语常表示将来的动作,D选项是现在分词的被动语态,强调动作正在进行.