Second language acquisition 50 English language 44 Study and teaching 33 Language and languages 32 Language 23 Language Teaching 22 Teaching 16 Study 15 Foreign speakers 10 Education 9 Linguistics 9 Second language 7 English 6 Second Language Acquisition 6 Grammar 5 Language acquisition 5 Research 5 English language - Study 4 Social aspects 4 Sociolinguistics 4 Acquisition 3 Applied linguistics 3 Languages 3 Learning, Psychology of 3 Ability testing 2 Academic writing 2 African speakers 2 Arabic Linguistic Studies 2 Computer programs 2 Curriculum subjects 2