People of different jobs do lots of things. Actually, doing a job means repeating some actions every day. Let's decide

1. Maths teachers drill pupils in counting. A builder drills holes in the wall.

2.  A dentist fills your teeth with some material. A cook fills the cakes with cream.

3. Doctors must clean wounds to avoid infection. A cleaning lady is responsible for cleaning private houses, public buildings or offices.

4. A policeman can extract the information from some people. Sometimes doctors can extract small things from people\'s noses and ears. Dentists have to extract very bad teeth.