Answer:
1. Paris [...] il y a des étudiants algériens, américains et japonais.
2. On parle toutes les langues. On parle espagnol, chinois, anglais et arabe.
3. Les étudiants de pays francophones sont nombreux. Par exemple, il y a des étudiants du Maroc et de la Côte d'Ivoire.
4. Les étudiants français aiment les étudiants étrangers.
5. Les étudiants africains ont l'occasion de rencontrer bcp d'étudiants européens.
(Personnal Plus:)
It's a very beautiful vision of Paris but unfortunately it's quite wrong ...
The grandes écoles in Paris (Sorbonnes, SciencesPo, Collège de France, etc.) are practically inaccessible to any foreigner. These schools are filled with "sons of", these spheres are closed and the possibility of social association is, in France, one of the lowest in the world. The students who are in these grandes écoles stay there and do not like foreigners at all, rather they are right-wing people who are on the verge of systemic racism.
Arabic is only spoken in the cities because the French education system even loathes other languages.
I was in Paris (I live in Brussels) and there is a real separation of social class to an incredible point ... Segregation, never really experienced in Europe yet, seems almost to exist. The rich are in very very rich neighborhoods and rich schools, the middle classes are in expensive and small apartments and the poor (90% foreigners) are crammed into huge towers that are falling into ruins and where communitarianism is the only supporting pillar. Without access to schools, just unsanitary places where even the teachers do not want to teach (therefore imagine the children) ...
Don't dream too much: Paris sucks ...
Have a good day! ;D