Problem: Continue the following story.

Eric felt nervous around Aaron, but
Here's how I want to continue it: Eric was assured that they had no reason to feel nervous or apprehensive.

Problem: Continue the following story.

The dog was crying with the collar hurting its neck because the
Here's how I want to continue it: neck is big.

Problem: Continue the following story.

At the recital, Rachel's music doesn't sound as good as Natalie's because
Here's how I want to continue it:
Rachel hasn't practiced much.