Problem: How does the sentence end?

Spanish is the native language of Lawrence but not Michael, because 
Answer: Michael grew up in an Asian community.

Problem: How does the sentence end?

Yo-yo dieting was normal everyday life for Kyle but not Joel because 
Answer: Joel was a healthy weight.

Problem: How does the sentence end?

The car of Kayla was more shiny than that of Carrie because 
Answer: Carrie had not polished their car.

Problem: How does the sentence end?

Carrie had improved flexibiity in her leg while Felicia had improved flexibility in her hand. 
Answer:
Carrie had leg flexibility.