Read the definitions carefully and select the correct words.
1. a special vehicle that is used to take people who are ill or injured to hospital
2. to prevent anything moving through a space by being or placing something across it or in it
3. someone who is hurt or killed in an accident or war
4. a situation in which everything is happening in a confused way and nothing is organized or arranged in order
5. a chaotic situation is one in which everything is happening in a confused way
6. to hit something or someone that is moving in a different direction from you
7. an accident in which two or more people or vehicles hit each other while moving in different directions
8. a critical time or situation is serious and worrying because things might suddenly become much worse
9. a place where vehicles can leave a road such as a motorway, and join another road
10. large in size, amount, or degree
11. someone who has seen something such as a crime happen, and is able to describe it afterwards
12. a type of aircraft with large metal blades on top which turn around very quickly to make it fly
13. extremely large in size, amount, or degree
14. an event, especially one that is unusual, important, or violent
15. a place where one road, track etc joins another
16. one of the two or three parallel areas on a road which are divided by painted lines to keep traffic apart
17. to put a large quantity of something into a vehicle or container
18. a thick piece of wood from a tree
19. very large in size, amount or number
20. the part of a motorway that is used for passing other vehicles and is nearest the centre of the road
21. a traffic accident involving many vehicles
22. If a vehicle pulls out, it starts moving onto a road or onto a different part of the road
23. if someone scatters a lot of things, or if they scatter, they are thrown or dropped over a wide area in an irregular way
24. the place where an accident, crime etc happened
25. a place at the side of the road where you can stop to buy petrol, food, and other goods
26. to flow over the edge of a container by accident
27. the part of the road nearest the edge, used especially by slower vehicles
28. through, using