2. Yes, they are.
3. Yes, they are.
4.Yes, they are.
6. No, they aren't.
7. No, they aren't.
Объяснение:
Thank you for your letter. Sorry I haven’t written for so long. I have been busy with my studies.
In your letter you asked me about sport. I can say that there are two extremely popular sports in Russia – dance and different kinds of fighting, for example, karate or boxing. Also I would add some winter sports, for instance, ice skating or hockey. As for sport facilities, we can play basketball and volleyball. All teenagers enjoy doing it. In my opinion, there are not enough competitions, it is only volleyball. I really want some another sport competition.
I have to go now. Write back soon.
I live in Moscow,Russia. I live very happy. In Russia I love go to the museums and parks. I love my live!