单选题 Passengers are required to fasten their ______ when the train is moving.

单选题 The high - speed train has a comfortable ______ for passengers to travel in.

单选题 The ______ of the high - speed train can reach up to 350 kilometers per hour.

单选题 The train attendant will ______ the passengers when the train is about to arrive at the station.

单选题 The train conductor checks the passengers' ______ during the journey.

单选题 The high - speed train is equipped with advanced ______ systems to ensure the safety of passengers.

单选题 The ______ button is used to open the train door.

单选题 The ______ is the area where passengers wait for the train to arrive.

单选题 The ______ attendant helps passengers with their luggage and shows them to their seats.