With the glasses you could not see to the horizon, but the lenses allowed you too, since the 
OPTIONS:
- glasses were optically strong.
- lenses were optically strong.
lenses were optically strong.

Catherine liked to draw hearts more than she liked to draw cars because the 
OPTIONS:
- hearts are simple.
- cars are simple.
hearts are simple.

Jeffrey was a vegetarian, but Randy liked to eat beef. 
OPTIONS:
- Jeffrey ordered the steak for lunch.
- Randy ordered the steak for lunch.
Randy ordered the steak for lunch.