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.

Morphology

Social changes can often bring about language changes.

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.

Linguistics is generally defined as the s（）study of language.

Language is a system of a（）vocal symbols used for human communication.

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

The discipline that studies the rules governing the formation of words into permissible sentences in languages is called s（）

The distinction between competence and performance was proposed by F. de Saussure.

Human capacity for language has a g（）basis, but the details of language have to be taught and learned.