A、It is not convenient to walk outside. B、They must take charge of the house. C、The chances of being attacked have grown. D、They

During the past decade, there has been a big increase in violence crimes throughout the world. (29)Not only has there been a frightening increase in murders and rapes, but chances of being attacked and robbed have grown so that the elderly avoid leaving their apartments. The exact cause of this horrifying development has not been found. (30)Some sociologists feel that the growth of crime on TV is related with the growth of violence on going to be blown up, why not enjoy yourself fully! Regardless of the cause or causes, a fundamental change in about their fellow human beings. (31) Today, people have become "I-centered." They are more interested in tragic changes in our morality and social ways. Until people once more learn to replace "I" with "we". We shall continue to move toward destructive self-centeredness.