Chomsky defines “competence” as the ideal user’s k（）of the rules of his language.

Pragmatics

A diachronic study of language is the description of language at some point in time.

Syntax

Pragmatics is different from semantics in that pragmatics studies meaning not in isolation, but in context.

Linguistics

Modern linguistics regards the written language as primary, not the written language.

Language is p（）in that it makes possible the construction and interpretation of new signals by its users. In other words, they can produce and understand an infinitely large number of sentences which they have never heard before.

Syntax is different from morphology in that the former not only studies the morphemes, but also the combination of morphemes into words and words into sentences.

The study of meaning in language is known as semantics.