21.   A long silence followed her reply.

22.   The mathematics master obviously intended to make up for his long silence during the earlier part of the term.

23.   Sitting alone in the back seat Chris broke a long silence.

24.   There was a long silence, during which the noise on the line seemed to become a third party in their conversation.

25.   There was a long silence, broken only by the perpetual nudging of the wind, which seemed to be getting stronger all the time.

26.   There was a long silence between them.