1.The of a city is the most important person who runs the city council.
2.A is a person who sets up the pipes of a house and the water system.
3.A grows flowers and plants in a garden or greenhouse.
4.An controls the electricity system of a house or building.
5.A delivers messages from one person to another.
6.A fixes cars or broken mechanisms of a machine.
7.A works in a shop and serves customers.
8.An thinks about new machines and inventions to improve our lives.