One of the properties of language is that a language user can understand and produce sentences he/she has never heard before. This property of language is called ______.
A. duality
B. productivity
C. displacement
D. arbitrariness
查看答案
The _______ function refers to the fact that language can be used for establishing a favourable atmosphere or maintaining social contact rather than for exchanging information or ideas.
A. phatic
B. directive
C. evocative
D. performative
______ refers to the realization of langue in actual use.
Language is a system of ______ vocal symbols used for human communication.
Language is vocal because the primary medium for all languages is ______.