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    2．Boys and girls.please remain and keep quiet until theelectricity supply returns to normal. A．seated B．seating C．to seat D．seat 【查看更多】

     

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    Boys and girls，please remain________and keep quiet until theelectricity supply returns to normal.
      [     ]
    A．seated  
    B．seating
    C．to seat  
    D．seat

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