Problem: Continue the following story.

After Craig solved the difficult math problem, he showed Justin the solution. 
Here's how I want to continue it: Craig was proud of himself.

Problem: Continue the following story.

Christine was working online on the computer that Mary dropped a bowling ball onto. 
Here's how I want to continue it: Mary  broke the computer.

Problem: Continue the following story.

Supplements were helping with Mike's depression where regular pills had failed. This is due to the 
Here's how I want to continue it:
pills being a fake drug.