Problem: Continue the following story.

Derrick was much more successful in life than Brett was because 
Here's how I want to continue it: Brett was lazy in school.

Problem: Continue the following story.

As the gas filled the room, most people opted for the mask instead of the bag since the 
Here's how I want to continue it: mask was efficient.

Problem: Continue the following story.

Aaron went to a college and met Adam who is very smart, 
Here's how I want to continue it:
Aaron got help from him to study calculusinfinitesimal calculus.