9 Find in Exercise 7 the nouns denoting professions. How were they formed? Put them into the right group.

• -er/or/ess: singer
• -ist:
• -ian: cosmonaut
• compound nouns:

Add some nouns to each group.

• -er/or/ess: teacher, driver, actor
• -ist: artist, scientist, dentist
• -ian: musician, magician, comedian
• compound nouns: postman, firefighter, goalkeeper