小题1:B
小题1:D
小题1:C
小题1:根据One fine afternoon, I was walking along Fifth Street when I remembered that it was necessary to buy a pair of socks. 可知选B。
小题1:根据I had no idea of that, as my entrance had been accidental. 可知选D。
小题1:根据“if you can keep this up, if this is not merely from having a new job, if you can keep up this high spirit and excitement day after day, in ten years you will own every sock in the United States.”可知选C，如果你在工作中保持巨大兴趣，在将来你就会获得成功。