Study and teaching Language and languages 39 English language 19 Second language acquisition 17 Foreign speakers 12 Computer-assisted instruction 7 Error analysis 5 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 Language transfer (Language learning) 2 Learning, Psychology of 2 Psychological aspects 2 Sex differences 2 Sex differences in education 2 Social conditions 2 Study and teaching (Secondary) 2 Writing 2 Adult education 1 Applied linguistics 1 Attitudes 1 Audio-visual aids 1 Autonomy (Psychology) 1 Bilingual method 1 Bilingualism in children 1 Business communication 1 Business language 1