Story needs to be completed:
Leslie got a better grade on their English paper than Eric, because

My choice:
Leslie chose a topic that was less repetitive.

Story needs to be completed:
Carrie was training Emily to be a ventriloquist, and

My choice:
Carrie had been teaching ventriloquism for a very long time.

Story needs to be completed:
Adam gave all the newborn puppies to Steven because

My choice:
Adam dislikes all kinds of pets.

Story needs to be completed:
Laura gave birth to twins and Tanya delivered them, so

My choice:
Tanya was sure to congratulate them when it was done.