Problem: Continue the following story.

My sister filled out her forms faster than I filled out my documents because the 
Here's how I want to continue it: documents were harder.

Problem: Continue the following story.

The man tried to put the rock into the aquarium but the 
Here's how I want to continue it: rock was too large.

Problem: Continue the following story.

When opening up about their crushes, Kenneth sighed at Jeffrey because 
Here's how I want to continue it:
Jeffrey forgot who their crush was.