Problem: How does the sentence end?

The pores on the face required scrubbing, but not those on the arm, since the
Answer: arm was clean .

Problem: How does the sentence end?

Dennis loved to go dancing for fun but Donald did not.
Answer: Donald went to the movies on Saturday night.

Problem: How does the sentence end?

Erin packed on 100 pounds while Amy lost the same amount, so
Answer: Amy felt great about the results.

Problem: How does the sentence end?

Leslie gave a great performance in the play but Jeffrey did not.
Answer:
Leslie won an award for their skill.