We first present our model for total costs and unit costs.
The model for total costs and unit costs is presented first.
The model for total costs and unit costs was presented at the very end.
your SAT score doesn't affect how much you can get
A person sits on a couch.
And older man and a young girl are feeding bread crumbs to ducks.
Horse-racing is the most popular spectator sport.
People sit on a sofa.
An old man  wearing   red-orange robe and flip-flops,standing in front of a garden holding umbrella.