第27题: [单项选择]Frank realized fully what he had dreamed about could not ______ have happened in real life. A. likely B. certainly C. doubtfully D. possibly 参考答案:D 答案解析:likely指“从表面迹象来看很有可能”,如:The likely out-come of the contest varies from moment to moment.(比赛结果可能每分钟都在变