https://online2.tingclass.net/lesson/shi0529/0009/9786/30.mp3
https://image.tingclass.net/statics/js/2012
David ran a marathon. He could not believe it. It was a big achievement. Running a marathon is not easy. David had to train all year long. David woke up every morning. He would put on his running shoes, drink a lot of water, and run out the door. David ran for hours. He stopped only when he finished. David ran again at night. He had a lot of energy. He never got tired. Running a marathon took a long time. David ran 26 miles and 385 yards. It took 5 hours and 30 minutes to finish. David was exhausted when he finished. He was really thirst. He drank a gallon of water. He was still thirsty. David was happy. Running a marathon had been his wish. He could not wait to run it again next year.