Ключевые слова: adjective, adverb, chalkboard, classroom, conjunction, dictionary, discussion, education, elementary, english, foreign, grammar, information, interjection, knowledge, language, learn, learning, lecture, lesson, memory, noun, parts, past, photo, preposition, professional, pronoun, proofreading, punctuation, reading, rules, school, speak, talking, teach, teacher, tense, typography, university, various, verb,