[Q]: How does the sentence end?

My old knives would not cut through the bones because the 
OPTIONS:
- knives were very dull.
- bones were very dull.

[A]: knives were very dull.
QUES: Continue writing.

Her lease was almost up so Sally went to the dealership to look for a new car. The 

OPTIONS:
- dealership was locked up because it was just a display.
- car was locked up because it was just a display.
+++++++++
ANS: car was locked up because it was just a display.
Problem: How does the sentence end?

Betty had to potty train Cynthia in order to enroll them in preschool, because 
OPTIONS:
- Betty was a toddler.
- Cynthia was a toddler.
Answer: Cynthia was a toddler.
sentence: Being healthy was easier for Angela than Megan because  OPTIONS:
- Angela didn't belong to a neighborhood gym.
- Megan didn't belong to a neighborhood gym.
complete: Megan didn't belong to a neighborhood gym.
Cramps that affect pregnant mothers are as a result of pressure on the nerves. The 
OPTIONS:
- Cramps are painful.
- nerves are painful.
Cramps are painful.
Problem: Continue the following story.

The elderly people at the nursing home love Derrick more than Justin because 
OPTIONS:
- Derrick had little practice on their relatives.
- Justin had little practice on their relatives.
Here's how I want to continue it:
Justin had little practice on their relatives.