With trees and grass -------39.6% of the urban area, The city of weifang has taken on a new look

问题描述:

With trees and grass -------39.6% of the urban area, The city of weifang has taken on a new look
Covering.Being covered To be CoverCovered
解析

Covering.
rees and grass覆盖了39.6% of the urban area 覆盖了 是主动 所以Covering.
Being coveredCovered是被动的
因为有 with 所以Covering.