Problem: Continue the following story.

The girl wants to become something one day in the field of math over civil engineering because 
Here's how I want to continue it: math is cooler.

Problem: Continue the following story.

Cynthia showed Rebecca how to prepare the strawberry cheesecake, since 
Here's how I want to continue it: Rebecca was a cooking novice.

Problem: Continue the following story.

Rachel created more works of art than Emily did because 
Here's how I want to continue it:
Rachel was a more artistic person.