Second language acquisition Language and languages 19 Study and teaching 19 English language 11 Foreign speakers 4 Study 4 Teaching 4 Language 3 Ability testing 2 African speakers 2 Education, Bilingual 2 Language teaching 2 Research 2 Social aspects 2 Sociolinguistics 2 Study and teaching (Secondary) 2 Academic writing 1 Acquisition 1 Adoption 1 Bilingualism 1 Case studies 1 Chinese speakers 1 Code switching (Linguistics) 1 Cognitive grammer 1 Cognitive theory 1 Communication in education 1 Conversation and phrase books 1 Discourse analysis 1 Grammar 1 Grammar, Comparative and general 1