A _______ description takes a fixed instant as its point of observation.
Saussure’s _______ linguistics is the study of a language through the course of its history.
Saussure distinguished the linguistic competenceof the speaker and the actual phenomena or data of linguistics as _______ and _______.
A language user’s underlying knowledge about the system of rules is called his linguistic ________. And ________ refers to the actual use of language in concrete situations.