Problem: Continue the following story.

Jeffrey has a internal injury but Robert is not a doctor and doesn't even know about first aid, 
OPTIONS:
- Jeffrey will not give any medical help to him.
- Robert will not give any medical help to him.
Here's how I want to continue it: Robert will not give any medical help to him.

Problem: Continue the following story.

It took another hour for Rebecca to fill the tank with water as compared with Jennifer because 
OPTIONS:
- Rebecca worked very slowly.
- Jennifer worked very slowly.
Here's how I want to continue it: Rebecca worked very slowly.

Problem: Continue the following story.

The mechanic tried to cover the car with a tarp but it didn't fit because  the 
OPTIONS:
- tarp was too short.
- car was too short.
Here's how I want to continue it:
tarp was too short.