A．Stricter discipline should be maintained in schools and families.
B．More good examples should be set for people to follow.
C．More restrictions should be imposed on people’ s behavior.
D．More people should accept the value of responsibility.

A．Because they worship pigs best of all.
B．Because they consider pigs as bad animals.
C．Because they aren’t used to talking about pigs.
D．Because they don’ t like the topic about pigs at all.