[Q]: How does the sentence end?

Jerry bought his supplements at the grocery store instead of at the gym because they were expensive at the
OPTIONS:
- gym .
- grocery store .

[A]: gym .

QUES: Continue writing.

The postman always used the steps to the house instead of the escalator because the

OPTIONS:
- steps felt safe to him.
- escalator felt safe to him.
+++++++++
ANS: steps felt safe to him.

Problem: How does the sentence end?

Carrie was showing Lindsey all the details of the new project, because
OPTIONS:
- Carrie teaching her student.
- Lindsey teaching her student.
Answer: Carrie teaching her student.

sentence: Tanya was having more success producing breastmilk than Betty so the baby of OPTIONS:
- Tanya was thinner.
- Betty was thinner.
complete: Betty was thinner.

Kayla sent Emily a very sincere letter, but there was no answer.
OPTIONS:
- Kayla was disappointed.
- Emily was disappointed.
Kayla was disappointed.

Problem: Continue the following story.

Samantha bought a new pair of dentures, but Mary had a full set of teeth, so
OPTIONS:
- Samantha needed to brush their teeth that night.
- Mary needed to brush their teeth that night.
Here's how I want to continue it:
Mary needed to brush their teeth that night.