单选题 Today black children in south Africa are still reluctant to study subjects from which they were effectively barred for so long.
A. anxious B. curious C. opposed D. unwilling

【正确答案】 D
【答案解析】[解析] 各项的意思是：anxious担忧的，渴望的；curious好奇的，求知的；opposed反对的，敌对的；unwilling不愿意的，勉强的。划线单词reluctant的意思是：勉强的，难处理的。句意是：现今，南非的黑人孩子仍然勉强去学习已经长期被实施禁止的科目。所以，答案是D。