English language 45 Grammar 14 Listening 10 Spoken English 9 Reading comprehension 7 Examinations 6 Accounting 4 Americanisms 4 Biology 4 Textbooks for foreign speakers 4 Computers 3 Mathematics 3 Report writing 3 Rhetoric 3 Study and teaching 3 Vocabulary 3 Accents and accentuation 2 Active learning 2 Anatomy 2 Auditing 2 Calculus 2 Chemistry 2 Computer programming 2 DHTML (Document markup language) 2 Electronic circuits 2 Electronic control 2 Foreign speakers 2 Human anatomy 2 Nursing 2 Oral communication 2