Problem: How does the sentence end?

The chocolate could not be sliced with the knife because the
Answer: knife it too blunt.

Problem: How does the sentence end?

Robert took a long time to get through airport security but not Adam because
Answer: Robert luggage was improperly packed.

Problem: How does the sentence end?

Leslie really enjoyed being able to play volleyball but Craig did not because
Answer: Leslie was very sporty.

Problem: How does the sentence end?

Buying new office supplies and storage boxes was fun for Samuel but not Joel, since
Answer:
Joel hated having to organize.