练习册

  • 练习册
  • 试题
    精英家教网 > 高中英语 > 题目详情
    Land animals are believed ______ from sea animals.
    A．to have developedB．to have been developed
    C．having developedD．having been developed
    A
    考查非谓语动词。句意：陆地动物被认为是由海洋动物进化而来的。根据句意可知事情已经发生，故用不定式的完成时，选A。
    练习册系列答案
    年级 高中课程 年级 初中课程
    高一 高一免费课程推荐！ 初一 初一免费课程推荐！
    高二 高二免费课程推荐！ 初二 初二免费课程推荐！
    高三 高三免费课程推荐！ 初三 初三免费课程推荐！
    相关习题

    科目：高中英语 来源：不详 题型：单选题

    Having broken the traffic rules, Tom _____from driving for a year.
    A．has bannedB．had bannedC．is being bannedD．has been banned

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：单选题

    —Remember the first time we met?
    —Sure. You ____in the supermarket.
    A．shoppedB．have shoppedC．had shoppedD．were shopping

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：单选题

    If it was fresh and ________, then the ship was close to land.
    A．smelling strongB．smelled strongly
    C．smelled strongD．smelling strongly

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：单选题

    We first met on a train in 2000．We both felt immediately that we _____ each other for years.
    A．knew B．have knownC．had knownD．know

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：单选题


    You can’t imagine the difficulty he _____ onto the cliff and saving the boy in trouble.
    A．had to climbB．had climbed C．had climbingD．had on climbing

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：单选题

    After he left college , he was employed in an international company and _____        there ever since .
    A．worked B．has worked C．had worked D．was working

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：单选题

    The manager had fallen asleep where he ______, without undressing．
    A．was layingB．was lyingC．had laidD．had lied

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：单选题

    By the middle of the 1920s the farthest corners of the earth       explored.
    A．areB．wereC．have beenD．had been

    查看答案和解析>>

    同步练习册答案