English language Foreign speakers Study and teaching 139 Second language acquisition 56 Study and teaching (Higher) 54 Study and teaching (Secondary) 25 Ability testing 17 Vocabulary 16 Language and languages 15 Reading comprehension 15 Rhetoric 15 Writing 14 Study and teaching (Primary) 13 Written English 13 Language 12 Grammar 10 Attitudes 9 Learning strategies 9 Spoken English 9 Students 8 Computer-assisted instruction 7 Errors of usage 7 Study and teaching (Graduate) 7 English teachers 6 Methodology 6 Oral communication 6 Persian speakers 6 Psychological aspects 6 Business English 5 Case studies 5