Our beautiful Betty is not lucky today. She has a car accident while going on the street. It seems that she has broken bones in knee. Please take her to hospital to let doctors give her knee surgery. First, let her get X-ray as soon as possible. Her legs have been broken. Let us treat her broken legs together. Play the role of doctor to give her some necessary treatment. Follow our instructions to do the knee surgery and fix the broken bones with some professional medical tools. It will be a good opportunity for you to show us your excellent doctor skills. I believe after your careful and considerate treatment Betty will feel better and can go back her house. Have fun in this brand new doctor game!