21.   The wall fell because it was rotten from the top.

22.   The wall had fallen on my left side.

23.   They are old news, humpty dumpties, shattered when the walls fell down.

24.   Two years later the wall fell.

25.   What would be the ramifications if that wall suddenly fell?

26.   When the wall fell down, people in Russia and the West expected the bard to return at once to the land that claimed and created his soul.

27.   When the wall fell, the East was suddenly hot news, but no one could get through.

28.   When the wall fell, the woman who had shunned politics suddenly found herself becoming politically active.

29.   When it was over, the ceiling and wall had fallen.

30.   When the Berlin wall fell, they wasted no time getting away.