问题补充:
What I am concerned about is they could fit in with society and how we can create more opportunities for them.
A. which
B. what
C. whether
D. who
答案:
A. which
B. what
(答案→)C. whether
D. who
解析:C考查名词性从句。分析题干可知空格后面部分的句子成分完整,排除要在句中作成分的A、B、D三项; whether在句中不作成分,意为“是否”,符合句意。