Ключевые слова: banner, basic, board, camera, character, checkered, childhood, class, classroom, college, colorful, continuous, design, doodle, education, educational, element, english, example, exercise, flat, grammar, hand drawn, idea, illustration, information, isolated, knowledge, language, learning, lecture, lesson, man, negative sentence, past, poster, primary, rules, school, sentence, simple, smart, student, study, symbol, take pictures, tense, text, verb,