The American Civil War lasted four years ______ the North won in the end.

  A. after                B. before            C. when             D. then

 The American Civil War lasted four years ________ the North won in the end.

A. after                 B. before               C. when            D. then

The American Civil War lasted four years_______the North won in the end.

     A. after              B. before             C. when              D.then

The American Civil War lasted four years        the North won in the end.

   A. after   B. when   C. before   D. since

  20. The American Civil War lasted four years           the North won in the end.

      A. after   B. before   C. when   D. then

25. The American Civil War lasted four years _____the North won in the end.

A. after                           B. before               C. when                 D. As