A、Deputy Secretary. B、Foreign minister. C、Country commissioner. D、State governor. C短文说她首先做过行政长官，然后当上了德克萨斯州财政部长，故C正确。

Ann Richards was a famous Democratic Party politician from the southern state of Texas. She served as the governor of Texas for four years. [20]Richards was known for her big white hair, big smile, and sharply funny comments. She was also known for forming what she called a "New Texas" during her time as governor. She created a government in which women, Hispanics, and African-Americans played important roles. Ann Richards did not always have a career in public service. As a young woman, she worked as a teacher and raised four children. She and her husband were very involved in local politics. Richards began working hard to help Democratic Party candidates win seats in the Texas legislature. Then one day, she decided to run for office herself—and she won. [21]She served first as country commissioner, then as Texas state treasurer. In 1990 she was elected governor. She fought for equal rights, environmental protection and laws to restrict guns. After losing a second term as governor to George W. Bush, Richards worked in public relations. She died this September at the age of seventy-three. At her funeral service, leaders from around the country gathered to celebrate her life. Former President Bill Clinton spoke at the service. [22]He said Ann Richards helped create a world where young girls could be scientists, engineers and police officers. He said she was a great woman with a big heart and big dreams.
20. What does the speaker say about Ann Richards?
21. What did Ann Richards do before she worked as the treasurer of Texas?
22. What do we learn from the words of Bill Clinton?