Câu 2 ạ

Playing sports is thought to be the best leisure activity for teenagers. The first reason is that playing sports helps strengthen teenagers' health. Only by half an hour playing sports can they have a strong heart, beautiful muscles and a lower chance of getting high blood pressure or obesity. Also, it is a cheap hobby as it doesn't cost much to enjoy. Second, playing sports is a means of relaxation as by paying all attention to playing, they can all forget about bad things or stress and hard work of a day.Last but not least, playing sports helps build up team spirit and national pride. This is due to the fact that playing sports requires concentration, flexibility and good team work. In short, playing sports is the most suitable leisure activity for teenagers.