People like doing sports. sport is very popular in many countries. it helps people to keep fit. sport has advantages and disadvantages. firstly, sport helps me keep fit. secondly, sport helps me form character. thirdly, sport develop sport skills. some sports are very dangerous. sport causes a lot of injuries. i prefer doing sport and do it regularly. i think doing sport is very important for me .sport helps me to keep fit and to be strong. a sound mind in a sound body.какие есть ошибки? если есть исправьте.

People enjoy doing sports. Sport is famous and important thing in many countries. Nevertheless, sport has got someprosand cons. For the advantages, sport helpspeople to keep fit, moreover, it reduces the chances to have coronary problems. Secondly, sport value to a person in a good way, forming a strong willed self-confident person. Thirdly, sports develop muscles and help person to survive in extreme situations. However, sport has got bad sides too. Sport can cause dangerious injuries. somesportsmen die because of the problems caused by sport.
As for me, i likedoing sports. I prefer (напиши тот спорт,что тебе нравится), because it helps me to keep fit.
Я исправила некоторые ошибки и обогатила словарь, на пятерку точно тянет) удачи:)