Christopher thinks mice are a good pet but Derrick does not. 
OPTIONS:
- Christopher bought some mice at the pet store.
- Derrick bought some mice at the pet store.
Christopher bought some mice at the pet store.

Running a business better suited Derrick than William because 
OPTIONS:
- Derrick forgot how to manage people better.
- William forgot how to manage people better.
William forgot how to manage people better.

Felicia showed Jennifer a trick in how to soften a paintbrush.  
OPTIONS:
- Felicia was impressed.
- Jennifer was impressed.
Jennifer was impressed.