Problem: Continue the following story.

Making play dough only required two ingredients which Kyle had on hand, but not Eric, so 
Here's how I want to continue it: Eric finished the project slowly.

Problem: Continue the following story.

The jar was made of glass but the bottle was plastic, so the 
Here's how I want to continue it: jar was more fragile.

Problem: Continue the following story.

James can never know what was written on the envelope in the box because just the 
Here's how I want to continue it:
box is visible.