Choose the right word for each gap. There are two extra words that you don't need to use.

The main emergency telephone number in Britain is 999. The number 999 was chosen because, on the old dial phones, it was considered to be the easiest to dial in ... or smoke. The number 999 calls the fire brigade, the police, the ambulance service, a coastguard rescue service or a mountain rescue party. The first three services are the most commonly used. The procedure is to dial the emergency number, to tell the counsellor which service is needed and to give the address or ... where help is needed. Where a specialized service is required, the call for help is often made to a branch of a voluntary organisation or ... . Their numbers are listed separately in the local telephone directory and even include such body as the Society for the prevention of cruelty to children, etc. Children who feel that they are in ... from adults can now call the fund Childline, using the number 0800 1111. This fund offers ... and friendship in such cases and operates on a regional basis.