Напишите письмо от 10-12 предложений о спорте

Swimming-is very useful and interesting sport.When swimming we strengthen muscles and burn calories.The ability to swim it is necessary in life situation. You never know what may to us in life happens. Can drown themselves ,or unable to save a drowning person. People who do swimming,the swim every day for two hours.Required to swim at least twice a week.To preserve health and shape.