______refers to the language system of an individual as expressed by the way he or she spe

______ refers to a sociolinguistic situation two varieties of a language exist side by sid

______ refers to the study and analysis of the mistakes made by second and foreign languag

______ refers to the actual realization of the ideal language users knowledge of the rules

______ refers to the type of language which is selected as appropriate to the type of situ

______refers to a branch of linguistics concerned with the use of language in social conte

The term register refers to language variation according to______.A．userB．useC．ageD．region