Fill the gaps with the correct form of words from the

Fill the gaps with the correct form of words from the box beside the text. The extinction of languages is a process that takes place nearly everywhere in the world. The rich variety of languages that must have existed in the past is diminishing and the number of languages is being (1)... rapidly. As estimated by various linguists, many of the 6,000 languages which are at present spoken in the world will not (2)... the next fifty years and will become (3).... At the I survive moment, children no longer use twenty to fifty per cent of these languages. I survival which makes the languages (4)... very uncertain. Quite a few (5)... languages within the territory of the Russian Federation are under threat of total (6)... and measures should be taken to put an end to this process of (7)... in the number of users of these languages. Linguists and ethnologists should work together with representatives of (8)... of endangered languages in order to find solutions to these problems, which will help to preserve the linguistic (9)... of our planet. extinct extinction reduced reduction survive survival diversity communities minority