[Q]: How does the sentence end?

The biting wind froze the pipe but not the chimney, as the
OPTIONS:
- pipe was insufficiently insulated.
- chimney was insufficiently insulated.

[A]: pipe was insufficiently insulated.

QUES: Continue writing.

Felicia went to the local boutique to purchase a gift for Carrie, because

OPTIONS:
- Felicia wanted to thank her.
- Carrie wanted to thank her.
+++++++++
ANS: Felicia wanted to thank her.

Problem: How does the sentence end?

Carrie is being paid to build a round pen for Betty's pigs, so
OPTIONS:
- Carrie is the farmer.
- Betty is the farmer.
Answer: Betty is the farmer.

sentence: Kelly replaced her plastic water cup with a glass one so she would see what she was drinking, the OPTIONS:
- glass was obscure.
- plastic was obscure.
complete: plastic was obscure.

Joseph studied hard for their math test but Neil did not.
OPTIONS:
- Joseph got a passing grade on their test.
- Neil got a passing grade on their test.
Joseph got a passing grade on their test.

Problem: Continue the following story.

John poured the entire bowl of water into his bath tub until the
OPTIONS:
- bowl was full.
- bath tub was full.
Here's how I want to continue it:
bath tub was full.