1. English is international language. There are a lot of contries which speak in English. But there are contries where English is official, for example Great Britain, Australia, Bahamas, Botswana, Gambia, India, Nigeria, Ireland, Cameroon, Canada, Kenya, Hong Kong, New Zealand, Pakistan, Guinea, Singapore, USA, Fiji, the Philippines, South Africa, Malta etc.
2.The native population of Amarica is Americans.
3. The capital of United states is London.
4. The president of the USA is Barack Obama.
5. The English isn't easy for me because there are many English sounds which no in Russian and so i have some problems with the pronanciation.Also English words have a lot of different meaning, one word can be as verb as noun,for example.
6.Yes, it is.
7. I from Russian.
8. the capital of Australia is Canberra.
9. no, I don't. I use English only on our English lessons.
10. Yes, it is. ( no, my mother tongue is ....)
11. the official languages of Canada are English and French.