题目内容
Language is moving towards formaility, for formal language is more elegant.
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Language change involves not only simplicity of grammar but also elaboration of grammar .
In future American English will continue to exert its influence onver other languages.
The way children acquire a language provide a basic cause for language change.
"Silly" meant "happy" in the past and now it refers to being naive or foolish. This phenomenon is called semantic broadening.
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