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    精英家教网 > 高中英语 > 题目详情
    Ladies and gentlemen, please fasten your seat belts. The plane ______..
    A．take offB．is taking off
    C．has taken offD．took off
    B

    试题分析:句意：女士们先生们，请系好安全带。飞机马上要起飞了。Be doing 可以表示最近的将来，常用的动词有come ，go， leave，take off 等，根据句意可知用将来时态，选B。
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