【单选题】【消耗次数:1】
Not until three years ago _____ to work outside.
he began
he begins
began he
did he begin
参考答案:
复制
纠错
相关题目
【判断题】 Before he began to study in the university, he had worked in a company for three years.
①  正确
②  错误
【单选题】 His father began to work ______ he was seven years old.
①  as old as
②  as early as
③  as soon as
④  as much as
【单选题】 5. His father began to work ____he was seven years old.
①  as old as
②  as early as
③  as soon as
④  as much as
【多选题】 _____________ , he began to write a report.
①  Finish the exploration
②  Having finished the exploration
③  The exploration finished
④  The exploration finish
【单选题】 he []his pen on the desk and began reading.
①  lay
②  laid
【单选题】 Before?he came to China, he??[填空]Chinese for three years.
①  have learned
②  had learned
③  learned
④  learning
【单选题】 Abraham Lincoln was raised to farm work, ____ he continued until he was twenty-two.
①  since
②  as
③  which
④  that
【判断题】 He has been in china for three years.
①  正确
②  错误
【单选题】 It was not until he arrived in class _____ realized he had forgotten his book.
①  when he
②  that he
③  and he
④  he
【单选题】 he park has been built and it will be open _____ three years
①  A. in
②  B.for
③  C.on
④  D.after
随机题目
【判断题】 液压升降整体脚手架架体及附着支承结构的强度、刚度和稳定性必须符合设计要求, 防倾覆装置必须灵敏、制动可靠,防坠落装置必须稳固、安全可靠。
①  正确
②  错误
【判断题】 送电操作顺序:开关箱→分配电箱→总配电箱;断电操作顺序:总配电箱→分配电箱→开关箱。()
①  正确
②  错误
【判断题】 为了突出钢筋,构件外轮廓线用细实线表示,而主筋用粗实线表示,箍筋用中实线表示,钢筋的截面用小黑圆点涂黑表示。()
①  正确
②  错误
【判断题】 碗扣式钢管脚手架可以使用工具式钢脚手板。 ()
①  正确
②  错误
【判断题】 塔机安装的拆除作业时,应按经验丰富的施工人员要求及注意事项进行。()
①  正确
②  错误
【判断题】 事故调查处理应当严格遵循科学严谨、依法依规、实事求是、注重实效的原则。()
①  正确
②  错误
【判断题】 《职业病防治法》规定,用人单位的施工现场管理人员对本单位的职业病防治工作全面负责。 ()
①  正确
②  错误
【判断题】 力是物体之间相互的机械作用,这种作用的效果是使物体的运动状态发生改变,而无法改变其形态。()
①  正确
②  错误
【判断题】 安全技术交底资料和记录应由建筑企业工程项目部对资料进行收集、整理,并妥善保存,竣工后销毁。 ()
①  正确
②  错误
【判断题】 安全检查是安全管理的重要内容,是识别和发现不安全因素,揭示和消除事故隐患,加强防护措施,预防工伤事故和职业危害的重要手段。 ()
①  正确
②  错误