Problem: Continue the following story.

When they go shopping Adam always uses paper bag but Robert uses plastic as 
Here's how I want to continue it: Adam is conscious of environment.

Problem: Continue the following story.

Joseph listened to Nelson talk on and on about his washboard abs.  
Here's how I want to continue it: Nelson was excited about his new look.

Problem: Continue the following story.

Pimples seemed to form more often for Rachel than Felicia because 
Here's how I want to continue it:
Rachel kept their face dirty.