Many c_____ have a special phone number for people to call when there are

Many c_____ have a special phone number for people to call when there are
robberies,fires,a___________ or other emergencies.
Dialling a single number to r________ emergencies started in Britain in1937.The first emergency call w_______ made in London on June 30,1937.The service later spread to other parts of Britain,but it was not u__________ the late1960s that the service could be used from every telephone.