Problem: Continue the following story.

The metal miner scavenged the area and extracted the iron and no gold because the 
Here's how I want to continue it: iron was plentiful.

Problem: Continue the following story.

The nurse applied pressure to the wrist but not the elbow, as the 
Here's how I want to continue it: elbow was uninjured part.

Problem: Continue the following story.

The shingle would work better on the house's slanted roof than the tar because the 
Here's how I want to continue it:
shingle are more common.