Problem: Continue the following story.

I lost the keys to my lock somewhere in the boxes, because the 
OPTIONS:
- keys are so small.
- boxes are so small.
Here's how I want to continue it: keys are so small.

Problem: Continue the following story.

I didn't like the movie today as much as the film yesterday, because the 
OPTIONS:
- movie was unprofessional.
- film was unprofessional.
Here's how I want to continue it: movie was unprofessional.

Problem: Continue the following story.

Kevin liked to play tricks on Hunter in middle school because 
OPTIONS:
- Kevin was a prankster.
- Hunter was a prankster.
Here's how I want to continue it:
Kevin was a prankster.