Sample writing:

Playing online games is becoming one of the most interesting leisure activities for teenagers because it has some positive points. Firstly, it is quite easy and convenient to play with just a laptop with Internet access. Secondly, gamers can chat cheerfully and relax during the games. Finally, online games can help encourage creativity and socialise better. However, playing continuously for a long time over three hours can cause addiction as well as badly affect gamers’ health. In short, teenagers can choose online games as their leisure activity as long as they do not play it for too long.