What do you usually need to enter or leave a country?
A passport
What's this called?
Luggage / Suitcase
What are these called?
Seats
What's this?
Security / Security check
What is this?
A gate
What is the plane doing?
It is landing.
What is this?
An aisle
What are the people who board on a plane called?
Passengers
What is this?
A boarding pass
What's this?
A seat belt