Answer:
6. Adverb
7. Adjective
8. Adjective
9. Adverb
Explanation:
6. David’s mother came home after work.
This does not describe anything.
7. Gill put David on his shoulders.
This describes where Gill put David.
8. Everyone looked for the missing ticket.
The ticket is described as missing.
9. The flower guy found the ticket to the concert.
This does not describe an aspect of the ticket.