70、黑索金遇明火、( )便可引起燃烧爆炸的危险。

46、You can’t keep these things, such as( ), in your carry-on baggage.

45、——( )
——We will be informed as soon as the time is fixed.

44、Which of the following cannot be exempted from check?

45、I’m afraid you have to stay here for the night, but the airline is responsible for your( ).

44、I’d like to( ) for the inconvenience caused by this delay.

43、Which of the following is not the number code of Delta Air Lines?

44、What kind of things cannot be taken on the plane?

43、If you don’t have any( ),the security check will be very quick.

42、The purpose of security check is to prevent( ).

46、A:I have just checked in for Flight MU586.What should I do now?