Problem: How does the sentence end?

I used a smoker to cook the meat instead of the oven. On the 
OPTIONS:
- smoker it's faster.
- oven it's faster.
Answer: smoker it's faster.
sentence: Kayla was a pro, but Cynthia only understood the basics, because  OPTIONS:
- Kayla had been doing it a much longer time.
- Cynthia had been doing it a much longer time.
complete: Kayla had been doing it a much longer time.
Tanya wanted to be conservative with the money Mary gave them, and 
OPTIONS:
- Tanya helped her resist shopping.
- Mary helped her resist shopping.
Mary helped her resist shopping.
Input: Continue writing.

The teacher told Lindsey to stay after class but not Carrie because 
OPTIONS:
- Lindsey was being naughty.
- Carrie was being naughty.

Continued: Lindsey was being naughty.
Story needs to be completed:
Steven wants to create a business while in school so he asks his professor Logan for an advice, so 
OPTIONS:
- Steven gives him an advice.
- Logan gives him an advice.

My choice:
Logan gives him an advice.
Problem: How does the sentence end?

Putting thread in a needle can be hard, so Christine asked Rebecca because 
OPTIONS:
- Christine couldn't see the hole.
- Rebecca couldn't see the hole.
Answer:
Christine couldn't see the hole.