Mrs. King is an American doctor. She is now in China. She works in a Children's Hospital in Beijing. She is also learning Chinese medicine  there. She likes Chinese medicine very much. She loves working for children. She works hard in the day and reads English books on  Chinese medicine at night. She learns Chinese from the Chinese doctors and her Chinese friends. Now she can speak some Chinese. She can read some Chinese books, too. Her husband Mr. King is a teacher. He teaches English in a junior high school in Beijing. He works hard, too. He works from Monday to Friday. He teaches three classes every day. Sometimes, on Saturdays and Sundays, he teaches other English classes. He wants to make more money . Mrs. King learns Chinese from   _   .
her teacher the books the doctors the Chinese doctors and her Chinese friends