________with the size of the whole earth,the highest mountain does not seem high atall.A)When compared B)Compare C)While comparing D) Comparing选哪一个?

问题描述:

________with the size of the whole earth,the highest mountain does not seem high atall.
A)When compared B)Compare C)While comparing D) Comparing
选哪一个?

A)When compared 这道题是考语法中的省略.即当主句和从句的主语一致时从句的主语+be可省略.所以选A)When compared=when (it is ) compared