【C12】A．adulthoodB．juvenileC．manhoodD．infancy

【C12】A．subjectB．subjectiveC．objectsD．objectives

【C12】A．outwardB．apartC．asideD．outside

【C12】A．attentionB．noticeC．interestD．attraction

【C12】A．theB．aC．anD．／

Play is the【C1】______business of childhood. From earliest infancy, every child needs oppor

People have been made to believe since infancy that__________.