Since the U.S. volume per capita is the highest in the world, the U.S.
The United States volume per capita is the highest in the world.
The United States volume per capita is among the lowest in the world.
If your correspondent has to visit her friends house, things are likely to go wrong.
a mexican posing for a photo
Two girls are selling cookies.
A horse steps on a man.
The player is not touching the ground.
two animals in the water