【单选题】My mother _________ a teacher for ten years. [ ]
【单选题】If my horse had won today, it_____ ten races in three years.
【单选题】The passengers on the plane have been held ______ for ten hours before the police had a firm control over the hijackers.
【判断题】小说《我是传奇》中,人类发生变异的原因是接受了过多的宇宙射线辐射。
【单选题】Had you joined the caht room ten minutes ago, you would have known what we _______about then.
【单选题】商务数据分析中,常被用作内部环境分析/竞争环境分析的模型是
【单选题】Had you joined the chat room ten minutes ago,you would have known what we about then.
【判断题】If it had rained another ten minutes, the game would have been called off.()