Chomsky defines“competence” as the ideal user's () of the rules of his language.
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Language is distinguished from traffic lights in that the former has the designing feature of ().
In linguistics research, both () and () approaches are preferred.
Language is a means of verbal communication. It is () in that communicating by speaking or writing is a purposeful act.
If a linguistic study describes and analyzes the language people actually use, it is said to be ().