A. using        B. after        C. affected        D. who        E. makeF. period        G. investigates        H. whether        I. particularly        J. habitsA new study finds that getting a family dog is good for kids. The finding is part of a growing body of research that 1. ____ how dogs can boost health, not just for kids but for people of all ages.In the study, Australian researchers followed 600 children over a 2. ____ of three years. They tracked kids' physical activities by 3. ____ monitors that measured things like how fast, long and intensely they moved. They also surveyed parents about their children's activities and 4. ____ they had a family dog or not. The researchers tried to see how the kids' activity levels were 5. ____ by dog ownership.Perhaps not surprisingly, both boys and girls in the study spent more time in playing in the yard 6. ____ getting a dog. But the impact was 7. ____ pronounced in girls. Adding a dog to the household increased young girls' physical activities by 52 minutes a day. It could 8. ____ a meaningful difference to their health."Having a dog in childhood could help kids create healthy 9. ____ around physical activities," says MacDonald, a professor at Oregon State University, 10. ____ has studied the physical and emotional benefits of dog ownership in kids.