单选题 When required to eat vegetables, many children only do so reluctantly .
【正确答案】 D
【答案解析】[解析] automatically“自动地”；anxiously“渴望地”；obediently“顺从地”；unwillingly“不情愿地”。这里需要选择和reluctantly(勉强地，不情愿地)相似的词，故选D。