Original sentence: Algeria's official language, Arabic, is spoken natively in dialectal form ("Darja") by some 80% of the population, and, as in the entire Arab world, used in the Modern Standard Arabic variant in the  and on official occasions.Some 20% of the population, identified as Berbers or Imazighen, are native speakers not of Arabic, but of some dialect of Tamazight
Edited sentence: Algeria's only official language is Arabic, Amazigh language is still not recognized as official even if it's spoken natively by more then 35% of the population and is the oldest language in North Africa.Some 35% of the population, identified as Berbers or Imazighen, are native speakers of some dialect of Tamazight not of Arabic.The most widely spoken language is a dialect called "Darja", it is spoken by some 80% of the population.the Modern Standard Arabic variant is used by the media and on official occasions