IN: Which person is he?
Doctor Chen prescribed glasses to Egore, since he conducted the eye exam.

OPTIONS:
- Doctor Chen
- Egore
OUT: Doctor Chen

IN: Which person is it?
The infection spread throughout the building because it was airborne.

OPTIONS:
- The infection
- the building
OUT: The infection

IN: Which person is they?
Planet Express was bought out by Mom's Friendly Delivery Service so they can no longer be a threat.

OPTIONS:
- Planet Express
- Mom's Friendly Delivery Service
OUT: Planet Express

IN: Which person is they?
The AirForce is more appealing than the Army, but they are just as important.

OPTIONS:
- The AirForce
- the Army
OUT:
the Army