Problem: Continue the following story.

Bob liked to treat his dandruff with professional treatments instead of shampoo, because the 
Here's how I want to continue it: shampoo didn't work well.

Problem: Continue the following story.

I sprayed the bottle on my dirty red polo shirt because the 
Here's how I want to continue it: shirt smelled bad.

Problem: Continue the following story.

Ben loved games, especially computer and sport. He decided to play the 
Here's how I want to continue it:
computer games because he was feeling lazy.