2. greengrocer / greengrocers / sell fruit and vegetables

3. postman / post office / take letters to peoples houses

4. waiter / cafe / serve people

1 A teacher works at a school. She teaches students.

2 A greengrocer works at a greengrocer’s. He sells fruit and vegetables.

3 A postman works at a post office. He takes letters to people’s houses.

4 A waiter works at a café. He serves people.