Problem: How does the sentence end?

She preferred brushing her teeth with the manual toothbrush rather than the electric toothbrush because the 
Answer: electric toothbrush was advanced for her.

Problem: How does the sentence end?

The mice were starving on their diet of grain, but got healthy when we switched to fruit, as the 
Answer: grain lacked proper nutrition .

Problem: How does the sentence end?

Sarah would have loved to raise backyard chickens like Carrie, because 
Answer: Carrie lived on a farm.

Problem: How does the sentence end?

The nut kept getting loose as the hobbyist tried to tighten it on the bolt because the 
Answer:
nut was too big.