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For Campbell and Wales (1970), ‘by far the most important linguistic ability’ is that of being able to ‘produce or understand utterances which are not so much grammatical but, more important, appropriate to the context to which they are made’.

(CANALE, M. Theoretical bases of communicative approaches to second language teaching and testing. Applied Linguistics, 1/1, 1980)

The concept of “language appropriacy” implies the