Problem: How does the sentence end?

Bob preferred having granite walls instead of concrete walls, because the 
Answer: concrete walls were more utilitarian.

Problem: How does the sentence end?

The smell of mold when we entered the house was strong so we opened the windows and lit some candles, but the 
Answer: candle didn't help with a strong breeze.

Problem: How does the sentence end?

The young boy looked up to Robert more than William because 
Answer: Robert was his favorite sports player.

Problem: How does the sentence end?

Emily paid Laura to teach them how to sing since  
Answer:
Emily couldn't carry a tune.