阅读下面短文，掌握其大意，然后从21-40各题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题纸上将该选项标号涂黑。
I soon realized that I had entered an unusual shop. There were no goods on show but a number of 41 shelves. A man standing on a 42 platform shouted loudly that the greatest 43 of the year was about to begin. I decided to stay and see what would 44 .
