With trees and grass( )百分之39.6 of the area,the city of Weifang has taken on a new look.

问题描述:

With trees and grass( )百分之39.6 of the area,the city of Weifang has taken on a new look.
A.covered B.covering C.tobe covered D.being covered.
为什么选A?
With trees,flowers and grass ______ everywhere,my native town has taken on a new book.
A.planting B.planted
C.to plant D.being planted
怎么又选B了?

第一题我怎么觉得是选Bcovering啊!
第一题是主动的,树和草在这片土地上覆盖了39.6%.而第二题则是被动含义,树草花被种在了每个地方,我的家乡有了新面貌.
这仅是我的想法,错了的话,别怪我.