单选题 The terrorists might have planted a bomb on a plane in Athens, set to ______ when it arrived in New York.
[A] go off [B] get off [C] come off [D] carry off

【正确答案】 A

【答案解析】go off爆炸；get off动身，飞行；come off脱离，分离；carry off带去，抢去。从句意看显然应选A go off。句意；恐怖分子可能在雅典往飞机上放置了—枚炸弹，定在飞机到达纽约时爆炸。