Most victims of house fires are poor people. In a very real sense, you could say that poverty is the (1) _____ that fires happen. Poor people tend to live in the oldest, most badly maintained buildings in a city. (2) _____ their poor maintenance, these houses often have faulty electrical wiring that can (3) _____ fires. Also, the poor often rely on open flames - whether using candles for light or gas stoves for heat. Any time there is an open flame nearby, a fire can easily (4) _____. Finally, poor people may not have money to spend on smoke detectors, (5) _____ they do not have any warning when a fire breaks out.

     People hotly debate the issue of whether live animals should be used in testing medical products. People who oppose animal testing say there is no excuse for making animals experience the pain and fear that is associated with live testing. They say that animal testing is of limited value, since animals and humans respond differently to medications and medical procedures. On the other hand, supporters of animal test say that many of the medicines and surgical procedures we use today would not exist without lab testing on animals. They claim that devices like heart and lung machines and pacemakers could never have been invented without animal testing.