TRAVELLERS ARE URGED BY EXPERTS TO READ AND LISTEN TO SAFETY INSTRU...
18.
Travellers are urged by experts to read and listen to safety instructions .A.
before locating the exitsB.
if smoke is in the cabinC.
before take-offD.
in an emergency18.
Travellers are urged by experts to read and listen to safety instructions .A.
before locating the exitsB.
if smoke is in the cabinC.
before take-offD.
in an emergency