Most of us think we know the kind of kid who becomes a killer, and most of the time we're

right. Boys (1)_____ about 85% of all youth homicides, and in those cases about 90% (2)_____ a pattern in which the line from bad parenting and bad (3)_____ to murder is usually clear. Their lives start with abuse, neglect and (4)_____ deprivation at home. Add the effects of racism, poverty, the drug and gang cultures, and it is not (5)_____ that in a violent society like ours, (6)_____ children become deadly teens.

(7)_____ what about the other 10% of kids who kill: the boys who have (8)_____ parents and are not poor？ Are their parents to blame when these kids become (9)_____？

Most children do fine while young enough to be (10)_____ by loving parents, but change as adolescents subjected to peer competition, bullying and rejection, (11)_____ in big high schools. The "normal" culture of adolescence today contains elements that are so nasty that it becomes hard for parents to (12)_____ between what in a teenager's talk, dress and taste in music, films and video games indicates (13)_____ trouble and what is simply a (14)_____ of the times. Most kids who have multiple body piercing, or listen to Marilyn Manson, or play the video games are normal kids caught in a toxic (15)_____ Intelligent kids with good social skills can be quite skillful at hiding who they really are from their parents. They may do this to (16)_____ punishment, to escape being identified as "crazy", or to protect the parents they love from being (17)_____ or worried. Anyway, how many parents are (18)_____ of thinking the worst of their son—(19)_____, that he harbors murders fantasies, or that he could (20)_____ so far as acting them out.

A．complete

B．commit

C．submit

D．perform