TRAVELLERS ARE URGED BY EXPERTS TO READ AND LISTEN TO SAFETY INSTRUC...
4.
Travellers are urged by experts to read and listen to safety instructions .A.
if smoke is in the cabinB.
before take-offC.
in an emergencyD.
before locating the exits4.
Travellers are urged by experts to read and listen to safety instructions .A.
if smoke is in the cabinB.
before take-offC.
in an emergencyD.
before locating the exits