Problem: Continue the following story.

Megan decided to sing a song at the talent show that Mary was judging.
Here's how I want to continue it: Megan was happy when she won first place.

Problem: Continue the following story.

My hammer that I just bought was better than the screwdriver because the
Here's how I want to continue it: screwdriver was the wrong tool for the job.

Problem: Continue the following story.

The cat was fed very well by Felicia but poorly by Rachel because
Here's how I want to continue it:
Felicia was the cat's owner.