Problem: How does the sentence end?

Angela always paid rent on time while Monica fell further in debt. 
Answer: Angela could always find a way to make money when needed.

Problem: How does the sentence end?

The teacher asked Leslie over Brian to take a look at the computer because 
Answer: Brian had no knowledge of technology.

Problem: How does the sentence end?

He stepped out of the hallway to the kitchen to call his kids in.  The 
Answer: kitchen was within their hearing range.

Problem: How does the sentence end?

Christopher asked Nelson to help them study for a history test because 
Answer:
Nelson was top of the class.