阅读短文，根据短文内容从A、B、C三个选项中选择最佳答案。

Mrs. Jones is an American doctor. She is now in China. She works in a children's hospital in Shanghai. She likes the children and: she likes to work for children. She works hard in the daytime (白天) and learns Chinese in an evening school. She also learns Chinese from Chinese doctors and Chinese friends. Now she can speak some Chinese. She can read and write some Chinese, too. She says it's not easy to learn Chinese well.

Mr. Jones is a teacher. He teaches English in the No. 5 Middle School. He works from Monday to Friday. He teaches three classes every day. He likes living in China.