What is it?
It's a plane/aeroplane
What is it?
It's an arrival board
What is it?
It's a check-in desk
What is it?
It's a departure board
Who are they?
They are flight attendants
What is it?
It's a luggage
Who is he?
He is a passenger
What is it?
It's a passport
Who is he?
He is a pilot
What are these?
These are seats
Who is he?
He is a security guard
What is it?
It's a metal detector
