Match the words in 1 with these definitions. 1 the people who work on a ship, plane, etc.
2 a line of cars waiting to move
3 a public transport system where trains travel in tunnels
4 a general word for something that travels in space
5 what a plane does when it begins its journey
6 what a plane does when it finishes its journey
7 the place at an airport where people board a plane