2) the USA. English is an official language in the USA. Americans live in the USA.
3) Great Britain/ the United Kingdom, English, the British/British people;
4) Norway, Norwegians, Norwegians;
5) Germany, German, Germans;
6) France, French, the French/French people;
7) Italy, Italian, Italians.
8) Russia, Russian, Russians;
9) China, Chinese, the Chinese/Chinese people;
10) Vietnam, Vietnamese, the Vietnamese/Vietnamese people;
11) Japan, Japanese, the Japanese/the Japanese people.