Problem: Continue the following story.

Dennis noticed who committed the murder at the party while Steven had no idea. 
Here's how I want to continue it: Dennis was observant.

Problem: Continue the following story.

The broom James bought from the store could not sweep the debris in the yard. The 
Here's how I want to continue it: broom is soft.

Problem: Continue the following story.

Joseph had a bad memory, so he asked Craig who was in the movie they saw last week. 
Here's how I want to continue it:
Craig was frustrated he always had to answer things.