单选题 The boy indulges in playing computer games and stays up every night to play.

【正确答案】 D
【答案解析】[解析] be addicted to“上了瘾的,沉溺于某种嗜好中”与indulge in“沉溺于,纵情于”意义相近。其他词subscribe to“订阅”;hang on“坚持,等一下”均不合题意。