When the police arrived, the man was requested ________ the safe place as quickly as possible．
A.to come offB.to come forC.come outD.come up在线课程B
从整个句子来看，此题的考点是动词request和come所构成的短语。request作“要求”解时，后面可接不定式，通常为：request sb．to do sth．“要求某人做某事”，request to do sth．“要求做某事”。request在此句中是被动式。A项come off“实现；成功”。B项come for“前去；朝……方向”。C项come out“出版；刊出；出现；显露；长出；结果是”。D项come up“出现；被提出”。