Problem: Continue the following story.

Elena left their dog and cat with Lindsey because they trusted them and 
Here's how I want to continue it: Lindsey was a professional pet sitter.

Problem: Continue the following story.

The toddler of Katrina eats a lot more than Monica's, though they are the same age. 
Here's how I want to continue it: Katrina 's toddler is heavier.

Problem: Continue the following story.

I know that my family will always be there and support me while I am unsure that my friends will aid, because the 
Here's how I want to continue it:
aid is unrelated.