At the beginning of World War I, the United States
A.used convoys to sink submarines.
B.stayed neutral.
C.dug trenches.
D.used tanks to fight.
Which of the following battles occurred at the end of World War I?
A.Battle of the Argonne Forest
B.Battle of Chateau-Thierry
C.Battle of the Bolsheviks
D.Battle of St. Mihiel