Findings in linguistic studies can often be applied to the settlement of some practical problems. The study of such applications is generally known as a（）linguistics.

Semantics

General linguistics, which relates itself to the research of other areas, studies the basic concepts, theories, descriptions, models and methods applicable in any linguistic study.

Phonetics

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

The study of meaning in language is known as semantics.

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.

P （）refers to the realization of langue in actual use.

Social changes can often bring about language changes.

Pragmatics