题目

Mother used to ask me what the most important part of the body is. Through the years I would     2l    the correct answer. When I was younger, I thought  _22  very important to us, so I said, “My ears, Mum.” She said, “No, many people are  23  . But think about it and I’ll ask you again.”  Since making my first  _24  , I had often thought over the question. So the next time l told her, “Mum, it must be our eyes.” She said, “You are__25  fast, but the answer isn’t correct because there are blind people.”  _ _26  the years, Mother asked me a couple more  _27�24的2在（_____）位上，表示（_____）个（_____），4在（_____）位上，表示（_____）个（_____）。