Problem: Continue the following story.

While Billie brought a pencil, I brought a pen to the realtor’s office. I gave Billie my pen and she gladly used the 
Here's how I want to continue it: pen to sign the document.

Problem: Continue the following story.

Patricia got an offer to be a nude art model and wanted to share the news with Betty, so 
Here's how I want to continue it: Patricia invited her to the event.

Problem: Continue the following story.

Cynthia wanted a birdcage made of gold so they asked Erin to make it because 
Here's how I want to continue it:
Erin worked on one to be built.