The telephone lines were brought down by the trees and branches.A.fall B.fallen C.fell D.falling所给答案是D,但我认为是B.应该是落下的树枝,动作已经发生.

问题描述:

The telephone lines were brought down by the trees and branches.A.fall B.fallen C.fell D.falling
所给答案是D,但我认为是B.应该是落下的树枝,动作已经发生.

如果是fallen就是树枝已经落到地上,怎么会把电线砸倒?只有falling正在下落的树枝才可以做到