Language and languages Study and teaching English language 16 Second language acquisition 16 Foreign speakers 11 Computer-assisted instruction 7 Error analysis 4 Study and teaching (Higher) 3 Competence and performance (Linguistics) 2 Computer-assisted instruction for foreign speakers 2 Data processing 2 Errors of usage 2 Language acquisition 2 Learning, Psychology of 2 Psychological aspects 2 Sex differences 2 Sex differences in education 2 Social conditions 2 Study and teaching (Secondary) 2 Adult education 1 Applied linguistics 1 Attitudes 1 Audio-visual aids 1 Autonomy (Psychology) 1 Bilingual method 1 Bilingualism in children 1 Children 1 Chinese 1 Chinese language 1 Classification 1