Problem: How does the sentence end?

Justin had a queasy stomach but Kyle had an iron stomach. The bad sushi caused 
OPTIONS:
- Justin to vomit.
- Kyle to vomit.
Answer: Justin to vomit.

Problem: How does the sentence end?

Although from competing agencies, Patricia asked Tanya to work with them, because 
OPTIONS:
- Patricia had expertise on the project.
- Tanya had expertise on the project.
Answer: Tanya had expertise on the project.

Problem: How does the sentence end?

Katrina asked Erin how to do her hair like Arwen, because 
OPTIONS:
- Katrina had never been able to do that before.
- Erin had never been able to do that before.
Answer: Katrina had never been able to do that before.

Problem: How does the sentence end?

Laura is taking singing and dancing lessons from the Jessica, because 
OPTIONS:
- Laura wants to get better.
- Jessica wants to get better.
Answer:
Laura wants to get better.