Task: Question Answering
Input (English): Context: A local man stopped and offered to pull Mary 's car to his house just around the corner so that it was off the highway . I flagged RD and told her to ask Mary if I could take the kids up to the campground while they handled the car issue . Later that night , when Mick and Mary returned to the camp ( thank goodness for kind strangers ) , I ran Mick 30 miles into town to pick up his car . I also returned my dogs to our house since they had been a bit annoying that evening sensing my anger at Mary regarding dinner . 
Question: What may be the reason that Mary 's car needed to be towed ?
Output (English): It broke down .