public.Ladies and gentlemen, welcome to London Heathrow Terminal 5. The local time here is five hours ahead of the Washington area and it’s approaching five past six in the morning. Please remain seated with your seatbelt fastened until the fasten seatbelt signs have been switched off. You may now make and receive calls as well as use all data services on your handheld electronic devices. When it is safe to leave your seats, take care when opening the overhead lockers, as items may have moved and could fall out and cause injury. Before leaving the aircraft this morning, please make sure that you have all of your personal belongings with you and remember that smoking is not allowed until you have reached a designated area. If your journey ends here at Heathrow, on leaving the aircraft please follow the yellow signs for arrivals. If you are connecting on to another flight from Heathrow today, please check the information screen for your departing gate number. If it is not yet displayed, please follow the purple signs to all terminals, A gate. Please be aware that all liquids including contents from onboard amenity kits will be screened  prior  to your next flight. To enable you to take these liquids on to your next flight, these items must be placed into a clear plastic bag available at airport security. Customers who use the British Airways mobile app can receive connecting gate information and boarding notifications if you have your device switched on. You can also connect using the free Wi-Fi offered by Heathrow Airport. All of us at British Airways and indeed the Oneworld Alliance would like to welcome home our customers who live here in the London area and wish those of you visiting for business or leisure an enjoyable stay. If you are travelling further afield, we wish you a safe and pleasant onward journey. It has been our pleasure to serve you and we look forward to welcoming you back again very soon. Thank you and a very good morning.
【題組】50. Where does this announcement take place?
(A) On a bus.
(B) On an airplane.
(C) On a ship.
(D) On a train.