The set of on
1. Put it down on the table.
2. Hang your coat on the hook.
3. There was a letter waiting for him on his return.
4. He gave me a book on South Africa.
5. They were on the organizing committee.
6. He’s on three hundred a week.
7. The doctor put me on antibiotics(抗生素).
8. He turned his back on us.
9. We lived in a town on the coast.
10. He played a tune on her guitar.
11. He is hard on his kids.
12. Sales are up on last year.