1 . Regular exercise is important for controlling weight and avoiding a variety of health conditions, which can also improve your academic ______ (表现). (根据汉语提示单词拼写)

2 . Thanks to immediate action, the children were rescued and those who suffered serious ______ (伤害，损伤) to arms and legs were admitted to hospital. (根据汉语提示单词拼写)

3 . 他们的音乐是古典和现代风格的混合体。
Their music is _______ _______ _______classical and modern styles.

4 . Confucius and Lao-Tzu are believed to be two of the well-known ________(专门人员，专业人士) in education in ancient China. （根据汉语提示单词拼写）