Problem: How does the sentence end?

Megan offered to sprinkle parmesan cheese on Mary's spaghetti at dinner but 
Answer: Mary was rude.

Problem: How does the sentence end?

Kenneth paid their taxes while Logan didn't so 
Answer: Kenneth avoided federal prosecution for tax evasion.

Problem: How does the sentence end?

The painting wouldn't fit in the frame, but the map did, because the 
Answer: map was smaller.

Problem: How does the sentence end?

Ryan worked in a business office unlike Robert so 
Answer:
Robert wore a t-shirt to work.