The study of the ways in which morphemes can be combined to form words is called morphology.

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

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.

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.

Langue refers to the a（）linguistic system shared by all the members of a speech community while the parole is the concrete use of the conventions and application of the rules.

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

Both semantics and pragmatics study meanings.

Modern linguistics is mostly prescriptive, but sometimes descriptive.

Pragmatics

Sociolinguistics is the study of language in relation to society.