Problem: How does the sentence end?

I had to change the tire on the car but not the one on the truck because the one on the 
Answer: truck was full.

Problem: How does the sentence end?

Susan made the decision of  getting in an airplane instead of train to go to Miami because the 
Answer: airplane travels fast.

Problem: How does the sentence end?

She found it was much easier to drive with window down and the radio on.  The 
Answer: radio needed to be turned down.

Problem: How does the sentence end?

Amy could never keep a boyfriend while Laura had no problems doing so. 
Answer:
Laura died happy and fulfilled.