As the sun fell on the third day the wall still held.
A wall fell on her and a couple other people.
When the wall fell, the East was suddenly hot news, but no one could get through.
For the ideas to take hold, walls must fall away.
When a wall falls the wrong way, he gets killed.
I shot into the smoke when the wall fell, as did the others.
The wall fell on my legs; I could not feel them.
The wall of water fell upon us, covering the land in a single night.
Then came an explosion, and the wall fell on them.
The three passed through and silently the wall fell back into position.