Problem: How does the sentence end?

Turner shot the wall using both a paintball and a real bullet. The wall had a hole in it because of the 
Answer: bullet .

Problem: How does the sentence end?

William convinced Ian to allow them to have a pet bird because 
Answer: Ian was lenient.

Problem: How does the sentence end?

Ryan made Nick recite mathematical formulas for the test, because 
Answer: Nick needs help in math.

Problem: How does the sentence end?

We used the lamps instead of the candles because the 
Answer:
lamps provided us with more light.