It was very late in the summer.John couldn't see because it was so dark.How could i have been so wrong?he wondered..The light was off,and no one could repair the power.Suddenly a voice was heard...Who is there?He asked,in a sleeping voice to the door...I'm the engineer,would you open the door?...he entered,repaired the problem,and leaved..then,the air conditionig was working,and he could sleep..