单选题 When a child has become ______to life in a city, he may feel quite at a loss in any other environment.

【正确答案】 A
【答案解析】句意：当孩子变得沉迷城市生活时，他在其他环境中就会觉得很迷茫。addicted to成习惯而离不开，有瘾。confronted with面临，面对。condition sb．to do训练某人。delimit确定某事物的范围或界限。