A. some people leave their letters in the dustbin B. some people never use "shift" in their writing C. people seldom use capital letters and punctuation D. many people leave the capital or punctuation 参考答案:C 答案解析:[解析] 文章最后一段的最后两句话意为“大写字母被扔到了垃圾堆里”,言外之意即不要了,而最后一词too表示同样如此。