Ключевые слова: algebra, animal, background, beautiful, blackboard, cat, chalk, chalkboard, class, classroom, comfortable, domestic, education, exam, expression, face, funny, humor, isolated, kitten, kitty, knowledge, learn, looking, math, mathematical, mathematics, maths, one, paws, pet, pets, practice, purebred, school, science, scientist, scottish, scottish fold, student, tabby, teacher, university, whiskers,