题干
Ⅱ、单项选择题（15分）
_____ boy as he is, he can take care of himself and leads _____ complete independent life.
A：A; a
B：A; /
C：The; the
D：/; a
答案(点此获取答案解析）
D
A：A; a
B：A; /
C：The; the
D：/; a
有意义的x的取值范围是【 】