Ответ:

1. Sport helps us keep our body fit.

I really think that this statement is true, but doing sports will not magically fix every problem. The point that I'm trying to make is that what you eat is important too.

2. Sport helps us improve our health.

Actually, I agree with this statement. I felt much healthier and stronger when I started working out - in fact, I convinced my friend to work out with me, so it became more fun too.

3. It is more enjoyable to watch sports rather than to do sports.

If you ask me, I enjoy working out more than watching sports - I find it boring. To be honest I never enjoying watching sports on a TV.

4. A lot of new kinds of sport have appeared recently.

All in all, I also noticed that there are a lot of new kinds of sports appearing every year. The problem is that I don't think all of them are useful.

5. In Ukraine sport is becoming more and more popular.

Basically I am very happy that sport is becoming more popular on the whole country level. Do you think that it is still not popular enough? I see what you mean, but it's getting better every year and I am sure it will continue to gain popularity.