给定一篇文章，删除所有的标点符号和数字，只保留英文单词。将处理后的单词按字母表顺序排序。
这是一篇测试文章，包含了一些标点符号，例如逗号、句号和感叹号，还有一些数字，如2019年和10月。
This is a test article containing some punctuation marks, such as commas, periods, and exclamation marks, as well as some numbers, such as 2019 and 10 October.

Sorted words: a, article, as, containing, exclamation, marks, numbers, October, punctuation, some, such, test, This, and, commas, periods