a person who is learning and practising the skills of a particular job. Who is he?

someone whose job is examining people's eyes and selling glasses or contact lenses to correct sight problems. Who is she?

someone whose job is providing excellent customer service by greeting shoppers, understanding their needs, and recommending appropriate products or services to make sales

someone in a high position, especially in business, who makes decisions and puts them into action. What does he do?

someone whose job is to study or examine something in detail, in order to discover or understand more about it and often to make predictions (= statements about what will happen in the future) relating to it. Who is he?

the person who is responsible for managing an organization. What does he do?

someone whose job is to give advice to people about the law and speak for them in court. What does she do?

What does she do?

She advises people on a particular subject. Who is she?

a person whose job is to design new buildings and make certain that they are built correctly. Who is she?

a person who does their job in an office rather than in a factory, etc.

Her job is to receive and pay out money in a shop, bank, restaurant, etc. What does she do?

a manager of an organization, company, college, etc. What does he do?