Problem: How does the sentence end?

After buying the animals food, the medicine treat for the dog was better than the syringe since the 
Answer: syringe was empty of medicine.

Problem: How does the sentence end?

Matthew was a great swimmer while Benjamin was not since 
Answer: Matthew had owned a pool all of their life.

Problem: How does the sentence end?

Will was hungry so he ate the berries instead of the apples, because the 
Answer: apples tasted terrible.

Problem: How does the sentence end?

The sidewalks contained a lot of litter, so Jeremy walked on the road instead because the 
Answer:
sidewalk was dirty.