阅读下面短文, 掌握其大意, 从短文后所给的四个选项（A、B、C和D）中, 选出可以填入空白处的最佳选项, 并在答题卡上将该项涂黑。
Many theories regarding the causes of juvenile delinquency （crimes committed by young people）  focus either on the individual or on society as the major contributing influence．Theories      on the individual suggest that children            criminal behavior before they were not sufficiently       for previous misbehaviors or that they have learned criminal behavior through interaction with others．Theories focusing on the role of society suggest that children commit crimes in       to their failure to rise above their socioeconomic status or as a rejection of middle-class values.
Most theories of juvenile delinquency have focused on children from      families,       the fact that children from wealthy homes also commit crimes．The latter may commit crimes for lack of adequate control from parents．All      , however, are uncertain or unimproved and are of course challenged with 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．This results in       among youths and may in      lead more youths into criminal behavior.
Families have also experienced       these years．More families consist of one parent households or two working parents;      ,children are likely to have less supervision at home than was common in the traditional family       ．This lack of parental supervision is thought to be an influence on juvenile crime rates．Other noticeable       of offensive acts include       experience or failure in school, the      availability of drugs and alcohol, and the growing phenomenon of child abuse and child neglect．All these conditions tend to increase the       of a child committing a criminal act,       a direct cause and effect relationship has not yet been established.

A．centering B．depending C．figuring D．concerning

A．refer to B．know about C．engage in D．learn of

A．punished B．forgiven C．forgotten D．excused

A．return B．contact C．reference D．response

A．respected B．cultivated C．disadvantaged D．immigrated

A．considering B．ignoring C．highlighting D．believing

A．values B．misbehaviors C．criminals D．theories

A．affect B．reduce C．prevent D．reflect

A．point B．lead C．come D．add

A．in general B．on average C．by contrast D．at last

A．discomfort B．dissatisfaction C．dishonesty D．discrimination

A．case B．short C．turn D．return

A．failure B．miseries C．development D．changes

A．contrarily B．consequently C．similarly D．occasionally

A．education B．concept C．structure D．economy

A．suggestions B．causes C．ideas D．reports

A．smooth B．favorable C．unfavorable D．practical

A．increasing B．restricted C．reasonable D．popular

A．knowledge B．aspect C．strength D．probability

A．since B．although C．as D．because