A passenger is walking into a bus.
The bus has a customer.
A person is leaving the bus.
It's necessary to estimate how much people will pay to avoid negative effects.
There are other things like this.
It's hard to determine whether the damage from spending too much is easier to remedy than the damage from cutting taxes too drastically.
The woman in the yellow shirt is talking to her friend.
Everything is going well.
a guy is asleep