____from space,our earth,with water covering 70% of its surface,appears as a "blue plane".选项有 a．seeing b.to be seen c.seen d.have seeing选什么,为什么啊

分类: 作业答案 • 2022-02-17 20:16:56

问题描述：

____from space,our earth,with water covering 70% of its surface,appears as a "blue plane".
选项有 a．seeing b.to be seen c.seen d.have seeing
选什么,为什么啊

答

c.seen
这是过去分词做地点状语,相当于If it's seen...