Q:

Many centuries of European history have been marked by war almost ceaseless between France and England when these two states first confronted each other in America.
I. had been marked
II. has been marked
III. is being marked

• 1
  Only I is correct
• 2
  Only II is correct
• 3
  Only I and III are correct
• 4
  Both I and II are correct
• 5
  No correction required