Story needs to be completed:
Dennis showed a major symptom of depression after Brian died, since

My choice:
Brian was in a casket.

Story needs to be completed:
Mary jumped into the pool with enthusiasm, while Patricia hesitated, because

My choice:
Mary was a stronger swimmer.

Story needs to be completed:
Because of all of Elena's vocal training, and also since Angela smoked,

My choice:
Elena had a much deeper breathing pattern.

Story needs to be completed:
Sarah was sick today with the flu while Rebecca was not, so

My choice:
Rebecca went to school that day.