Problem: How does the sentence end?

Randy was always in accidents throughout his life, unlike William because 
Answer: Randy was a daredevil.

Problem: How does the sentence end?

Bobby passed his quiz but not his test because he only studied for the 
Answer: quiz beforehand.

Problem: How does the sentence end?

At the bar, Spanish is mostly spoken, while at the restaurant, people mostly speak English. That's because the 
Answer: restaurant owner is American.

Problem: How does the sentence end?

While at work, Laura had to tell Erin how to be more effective because 
Answer:
Laura is the boss.