Problem: Continue the following story.

Ian learned CPR in their college health class but Jason never learnt the procedure. 
OPTIONS:
- Ian was calm and confident helping the heart attack victim.
- Jason was calm and confident helping the heart attack victim.
Here's how I want to continue it: Ian was calm and confident helping the heart attack victim.
Problem: The rehabilitator uses injections for horses and pills for dogs, Tom is a wild horse so 
OPTIONS:
- injection is the choice of treatment.
- pill is the choice of treatment.

My choice: injection is the choice of treatment.
[Q]: How does the sentence end?

Kerri wanted to replace her mothball with some brand new potpourri, because the 
OPTIONS:
- mothball was old.
- potpourri was old.

[A]: mothball was old.
QUES: Continue writing.

We used the machine to do the laundry rather than the washboard because the 

OPTIONS:
- machine was harder to use.
- washboard was harder to use.
+++++++++
ANS: washboard was harder to use.
Problem: How does the sentence end?

Because Lindsey was running faster than Monica, 
OPTIONS:
- Lindsey finished the lap over 3 minutes behind.
- Monica finished the lap over 3 minutes behind.
Answer: Monica finished the lap over 3 minutes behind.
sentence: Samuel has a few dogs running around their house while Adam has no pets.   OPTIONS:
- Samuel loves animals.
- Adam loves animals.
complete:
Samuel loves animals.