control. All theories however are tentative and are to criticism Changes in the social structure may indirectly juvenile crime rates. For example, changes in the economy that to fewer job opportunities for youth and rising unemployment make gainful employment increasingly difficult to obtain. The resulting discontent may in lead more youths into criminal behavior Families have also changes these years. More families consist of one-parent households or two working parents children are likely to have less supervision at home was common in the traditional family. This lack of parental supervision is thought to be an influence on juvenile crime rates. Other causes of offensive acts include frustration or failure in school, the increased of drugs and alcohol, and the growing of child abuse and child neglect. All these conditions tend to increase the probability of a child committing a criminal act, a direct causal relationship has not yet been established 21. [A] acting [C] centering [D] commenting 22. [A] before unless [C] untilcontrol. All theories, however, are tentative and are to criticism. Changes in the social structure may indirectly juvenile crime rates. For example, changes in the economy that to fewer job opportunities for youth and rising unemployment make gainful employment increasingly difficult to obtain. The resulting discontent may in lead more youths into criminal behavior. Families have also changes these years. More families consist of one-parent households or two working parents; children are likely to have less supervision at home was common in the traditional family . This lack of parental supervision is thought to be an influence on juvenile crime rates. Other causes of offensive acts include frustration or failure in school, the increased of drugs and alcohol, and the growing of child abuse and child neglect. All these conditions tend to increase the probability of a child committing a criminal act, a direct causal relationship has not yet been established. 21. [A] acting relying [C] centering [D] commenting 22. [A] before unless [C] until