Who is responsible for childhood obesity（肥胖）？ It's lunchtime and sixth-grader Oscar Villanova visits the vending（售卖） machine. He pays for an orange juice and some cheese sticks， （1） ____ he really wanted soda and chips. His school， Mildred Avenue， only sells school lunch and healthy snacks. Seventh-grader Leticia Brown （2） ____ （tell） by her doctor that she needs to lose weight. Her doctor says exercise will help her control her weight but at school she only gets physical education once a week. Many children suffer from health conditions （3） ____ are caused or made worse by their lifestyles. Childhood obesity has more than doubled in children and four times in adolescents in the past 30 years. Moreover， rates of childhood diabetes（糖尿病）（4） ____ （rise）. These conditions can put children （5） ____ risk for heart disease and other major killers later in life. These health issues are complex problems with many different causes. Eating meals out， watching lots of TV， and not being active after school can cause too much weight gain. But there are many things children can do （6） ____ （improve） their health. Doctors say the primary focus for children （7） ____ be eating healthy food and getting exercise every day. Schools are getting （8） ____ （involve） in solving the problem. Some， like Mildred Avenue， restrict the snacks students can buy.（9） ____ are offering more gym classes to emphasize the importance of exercise. Some schools even send home health notices warning parents that their child may be overweight. These schools believe parents should be acting more responsibly by restricting children's diets. Many parents get angry， （10） ____ （argue） that schools should limit their focus to teaching. They believe that they have primary responsibility for their children's health.