Помогите!!!Explain why:1)English has become a world language2)people who speak English

Помогите!!!
Explain why:
1)English has become a world language
2)people who speak English have better job opportunities
3)we use dictionaries to learn a foreign language
4)it's important to talk to native speakers whose language you are learning
5) So many people in Russia are learning English now.
6)learning a foreign language can be fun
7)it's not possible to have only amusing lessons of English at school