English language Foreign speakers Study and teaching 140 Second language acquisition 57 Study and teaching (Higher) 54 Study and teaching (Secondary) 26 Ability testing 17 Vocabulary 16 Language and languages 15 Reading comprehension 15 Rhetoric 15 Study and teaching (Primary) 14 Writing 14 Written English 13 Language 12 Grammar 10 Attitudes 9 Learning strategies 9 Spoken English 9 Students 8 Computer-assisted instruction 7 English teachers 7 Errors of usage 7 Study and teaching (Graduate) 7 Methodology 6 Oral communication 6 Persian speakers 6 Psychological aspects 6 Aids and devices 5 Business English 5