11.  A clear example can be seen in the case of the destruction of the ozone layer, causing the greenhouse effect.

12.  A college football association is charged with conspiring to limit the number of college games that football fans can see on television.

13.  A complete contrast in building style can be seen in Commercial Road.

14.  A couple of days later I saw her in a downtown bar.

15.  A couple of downstairs lights suggested that it was open, but of customers Karelius could see no sign.

16.  A couple of nurses rushed into the room to see what the trouble was.

17.  A couple of security guards showed me the door after they saw my camera.

18.  A couple of years after they got Married, he started seeing other women.

19.  A crazy man, some one she had never seen before, took a shot at her from a rooftop.