I’ll give the prize to _______ finishes the work first.

      is known to us all is     the old scientist, for whom life was hard in the  past, still works very hard in his eighties.

Peter was fired again. He really didn’t know _____ went wrong. 

Thanks to the application of new farming methods,output is now six times          _____it was  before 2000.

Soldiers stood next to a police truck, looking at the crime scene _______ a woman was gunned down in a poor neighborhood of the border city of Iran October 18, 2009.