Problem: How does the sentence end?

Dennis showed endless dedication to the unappreciative Ian, so
OPTIONS:
- Dennis expended their energy for nothing.
- Ian expended their energy for nothing.
Answer: Dennis expended their energy for nothing.

Problem: How does the sentence end?

Ryan found helping the poor very rewarding but Kyle though it was a waste of time.
OPTIONS:
- Ryan won a humanitarian award for their work.
- Kyle won a humanitarian award for their work.
Answer: Ryan won a humanitarian award for their work.

Problem: How does the sentence end?

Teaching computer skills was fun for Jeffrey but frustrating for Nelson, since
OPTIONS:
- Jeffrey was very bad at explaining new things to students.
- Nelson was very bad at explaining new things to students.
Answer: Nelson was very bad at explaining new things to students.

Problem: How does the sentence end?

The baker tried to store the shortbread in the basket but the
OPTIONS:
- basket was too small.
- shortbread was too small.
Answer:
basket was too small.