Television plays a very important part (21) most people’s lives. It changes (22) way of seeing the world; it helps people know (23) in the world; it shows people and places in other countries. Children needn’t (24) to the zoo to see animals or (25) to see the ships. They can watch a play, a concert or a game (26) the television set. (27) , people can make themselves relaxed after one day’s work. However, some children spend four to six hours (28) TV, or even longer on weekends. Sometimes the program is not fit (29) children, so the parents should find them (30) to do.