Problem: How does the sentence end?

Neil brought peanuts to the party but Justin brought balloons, 
Answer: Neil was unaware of food allergies.

Problem: How does the sentence end?

Angela complimented Laura on her beautiful smile as 
Answer: Angela noticed her braces were removed recently.

Problem: How does the sentence end?

The chemicals that I bought didn't clean the counters well because the 
Answer: chemicals were too weak.

Problem: How does the sentence end?

Kayla doesn't own a dog, but Cynthia has three. This is because 
Answer:
Kayla dislikes animals.