IS unit 5

if a vehicle -, it moves forward very slowly

(a)  

the pieces of something that are left after it has been destroyed in an accident, explosion, etc.

(a)  

a different way that traffic is sent when the usual roads are closed

(a)  

to empty (a place) by making all the people leave

(a)  

if traffic -, it moves easily from one place to another

(a)  

a situation that stops something from happening or making progress

(a)  

travelling or leading towards the direction that is at the top of a map of the world, above the Equator

(a)  

one of the two sides of a motorway or main road, for vehicles travelling in the same direction

(a)  

a period of time when there is no electricity supply

(a)  

when a form of transport such as a train is temporarily not working and a bus is provided to transport passengers on a similar route

(a)