Adam rarely reached their goals, while Brian excelled at everything they did, because
OPTIONS:
- Adam was more motivated.
- Brian was more motivated.
Brian was more motivated.

Matthew made a complex graph but not Ian because
OPTIONS:
- Matthew taught a class at a basic level.
- Ian taught a class at a basic level.
Ian taught a class at a basic level.

Leslie proudly told Kevin that he had signed up for the Armed Forces.
OPTIONS:
- Leslie was patriotic.
- Kevin was patriotic.
Leslie was patriotic.