1 – С
2 – D
3 – A
4 – E
5 – B
1. The mother tongue is the language which a child learns naturally, in his / her family, not as a foreign language.
2. The population is the people who live in the country, city. etc. not tourists.
3. The official emblem is the sign of a country.
4. The official language is the language which is spoken on radio, TV, and by official people, and usually by most of the people in the country.
5. The original population is the people who lived in the country before it got its present name.