There are lots of jobs to do today. Each job has its own character and field. A lawyer is a person who has studied law. His job is to give legal advice and to represent people in court. A singer is someone whose voice has been specially trained for a professional singer. The police are an organization of men and women who are employed by the government of a country. Their jobs are to arrest criminals, prevent crime, keep the public in order and to see that laws are obeyed. A receptionist is a person who is employed in a hotel, a factory or a firm. Her job is to greet visitors and answer the telephone.