Problem: How does the sentence end?

We didn't get a new wheel for the car but saved it for the truck, as the 
Answer: car was decrepit at this point.

Problem: How does the sentence end?

Monica got the starring role but not Lindsey, because 
Answer: Lindsey performed poorly at the audition.

Problem: How does the sentence end?

Robert knew nothing abut them but tried to fix his washer while Dennis was very knowledgeable but lazy. 
Answer: Dennis wouldn’t fix the washer.

Problem: How does the sentence end?

Once the mind is made up, Neil will not change it but Kyle might as 
Answer:
Neil is very stubborn.