Ключевые слова: acknowledgement, affirmative, alphabet, anonymous, answer, at hand, blank space, block, blocks, building block, capital letters, character, choice, circle, closeup, copy space, correct, english, english letters, english word, font, good, hand, letter blocks, like, no face, ok, option, problem, quiz, right or wrong, roman letters, simple, solution, solved, term, understood, white, white back, white background, wooden, wooden block, word,