This comprehensive test is intended to ______ (巩固你所学的) in the past few weeks.

A．groups
B．species
C．classes
D．regions

A．Schools and parents do not want to handle errant children effectively.
B．Economic cease has reduced parents’ time to communicate with their children.
C．Youths violence has already wide-spread among students and they find. it exciting.
D．Children are influenced by problems in the adult world and rules are not strict enough.