Problem: How does the sentence end?

The girl wants to become something one day in the field of math over civil engineering because 
OPTIONS:
- math is cooler.
- civil engineering is cooler.
Answer: math is cooler.

Problem: How does the sentence end?

I poured the flour from the container into the bowl until the 
OPTIONS:
- container was full.
- bowl was full.
Answer: bowl was full.

Problem: How does the sentence end?

Sarah showed Monica how to cook a delicious medium rare steak, as 
OPTIONS:
- Sarah was a novice chef.
- Monica was a novice chef.
Answer: Monica was a novice chef.

Problem: How does the sentence end?

Everybody loved the vodka cocktail that Emily made at the party, while no one liked Erin's cocktail, because 
OPTIONS:
- Emily was an experienced bar tender.
- Erin was an experienced bar tender.
Answer:
Emily was an experienced bar tender.