The process of language extinction is natural. Languages have always _____ 11 _____ into other languages. For example, Latin turned into Italian, and Anglo-Saxon into English. Languages may disappear for many reasons: natural disasters, wars, and diseases. In the 1960s, a group of Western explorers exposed a village in Venezuela to influenza. Having no immunity to the disease, almost the entire village died. That village was the only place where the Trumai language was spoken. In some cases, governments have _____ 12 _____ minority groups to abandon their native languages. In the United States, Canada, and Australia, young speakers of native languages were once forced to attend boarding schools where the use of their mother tongues was _____ 13 _____ . Mass media, such as movies and television, are often _____ 14 _____ for destroying languages, but according to an African language specialist, the biggest threats are actually improved transportation and economic pressure. Young adults move to cities and, to compete for jobs, must learn _____ 15 _____ languages. They then do not teach their children their native tongues. [Fill in blank 14]