The___man on the left is Beckham,a famous football player

The___man on the left is Beckham,a famous football player
A.two B.second C.three
What's the population of the world
A.five B.six bilion C.seven billion D.eight billion
Although I failed four times ,my father encouraged me to have a ___ try
A.second B.third C.fourth D.fifith
How ofen are the Olympic held
A.Every B.Each C.In D.For