Ключевые слова: above, alarm, antigen, arrangement, back to school, clock, composition, computer, concept, corona, coronavirus, covid, covid19, creative, education, express, flat, german, german language, germany, green, keyboard, lay, mask, medical, notebook, orange, paints, paper background, pen, pencil, pp2, quick, reopening, respirator, sanitizer, schnelltest, school, selbsttest, stationary, supplies, test, tones, top, two, two tone, view, yellow, zuruck in die schule,