Problem: How does the sentence end?

Seth liked to perform poems at open mic night but never performed songs, because he was a terrible singer and felt comfortable with the 
OPTIONS:
- songs .
- poems .
Answer: poems .

Problem: How does the sentence end?

Rebecca took many showers throughout the day, but Kayla did not. 
OPTIONS:
- Rebecca was a very clean person.
- Kayla was a very clean person.
Answer: Rebecca was a very clean person.

Problem: How does the sentence end?

Brett always had fresh flowers in the house unlike Eric because 
OPTIONS:
- Brett loved the smell of them.
- Eric loved the smell of them.
Answer: Brett loved the smell of them.

Problem: How does the sentence end?

James found out some stain on his teeth even after using the brush. The 
OPTIONS:
- brush is tough.
- stain is tough.
Answer:
stain is tough.