Without time to relex and have fine ,kids can suffer stress just like adults ,warn exports-who say as many as one in four youngsters have symptoms of burnout (过度劳累). More and more parents are pushing their kids to be busy in structured activities all the time. Many of these activities for children aren't recreational (娱乐的) （ 1 ） involve competition. The kids are pushed to win, not just participate, and this can cause stress . Today's parents have the （ 2 ） that children who don't pursue a lot outside activities will be left behind .Parents are in a panic because they know it's a （ 3 ） world out there. They are running scared to be sure their kids can go into the marketplace and compete as adults, but （ 4 ） some cases they are missing the big picture.
Kids who are unhappy and depressed grow up to be unhappy, depressed adults who don't do well in their jobs or personal life. And these kids won't know as adults how to relax. Everyone needs time just to relax and refresh. When you're not stressed, you can be （ 5 ） productive. That's why it's important to help your child find a balance.
4. ____

A.in

B.idea

C.but

D.more

E. tough