Story needs to be completed:
Jenny found that using peroxide instead of toothpaste on her teeth gave her a better smile, because with

My choice:
peroxide her teeth were whiter.

Story needs to be completed:
Steven asked Kyle for help building the shed, because

My choice:
Kyle had experience with power tools.

Story needs to be completed:
Kayla was much more grateful for the gifts than Angela because

My choice:
Angela didn't send out thank you notes.

Story needs to be completed:
James was able to eat more of the apples than bananas because the

My choice:
bananas are sour.