单项选择题
A.tape conversations B.monitor break time C.make them work harder D.listen to conversations and watch what they do
A.There are too many rules in gangs now. B.Most of the gang members have gone to prison. C.Gangs are always in danger. D.Gangs cannot change their lives.
A.For starting the Crips gang. B.For writing books. C.For living 20 years in a violent prison. D.For the good work he has done to keep kids away from gangs.