Ключевые слова: 1st, april, celebration, chair, child, class, classroom, crazy, dangerous, day, education, first, fool, foolish, fun, funny, girl, hoax, humor, humorous, joke, joking, kid, kidding, lesson, little, mischief, nail, pain, painful, pin, practical, prank, prick, primary, pupil, risky, safety, school, schoolgirl, secondary, sharp, silly, sitting, small, tack, teen, thumb, thumbtack, trick,