Betty's doctor told her to exercise more. So began running. She enjoys running. She runs almost day. She runs two miles a day. On weekend she runs five miles. She runs up . She runs down hills. She runs in the and on the sidewalk. She runs on trails. runs in the heat and the cold. She on sunny days and rainy days. Betty will in the marathon next week. Next week will her first marathon. A marathon is 26 miles. will run for three hours without stopping. She 't try to win the marathon. She will try finish it.