Story needs to be completed:
Justin wants to learn how to flip a pancake so he asks Robert for an advice, because

My choice:
Robert is an experienced chef.

Story needs to be completed:
Robert enjoyed science experiments while Derrick was bored of them, so

My choice:
Robert looked forward to physics class.

Story needs to be completed:
Cynthia showed Sarah how to make the best witch costume for Halloween since she knew

My choice:
Sarah was hoping to win a prize with her costume.

Story needs to be completed:
Erin was far more likely to enjoy fishing than Sarah because

My choice:
Sarah did not like the beach or being outdoors.