分类：教育/科学-外语学习
问题：Don'tletachildwhois__gotoschool.? 
Don't let a child who is __ go to school.It will oil his interest.A.not old enough to  B.too young to
回答：A
Don't let a child who is not old enough go to school.It will spoil his interest.

who is not old enough 是child的定语。