题目

Recently I experienced a wonderful lesson in how little things still mean a lot. I live on the Island of Hawaii. About a month ago, when I    36   my car and was about to drive off, I glanced down at the roadside. A piece of paper   37  my eye. I picked it up and read it   38  . Instantly I was grateful that I had done that. The form   39  to be a receipt from the State Motor Vehicle Division, documenting the owners’   40   of their Vehicle’s Registration fees. Quickly I put myself in their   41  and figured: no one would throw this away, especially if it was 用2、3、5三张数字卡片，最多能摆出______个不同的三位数．