sentence: Elena is a more efficient teacher than Tanya because OPTIONS:
- Elena takes the time to teach the students.
- Tanya takes the time to teach the students.
complete: Elena takes the time to teach the students.

sentence: Eric was careful unlike Hunter, so OPTIONS:
- Eric was injured by a nail while working on a carpenter assignment.
- Hunter was injured by a nail while working on a carpenter assignment.
complete: Hunter was injured by a nail while working on a carpenter assignment.

sentence: Adam chose to sleep on a sofa instead of a bed because the OPTIONS:
- sofa was much more comfortable.
- bed was much more comfortable.
complete:
sofa was much more comfortable.