1. on

2. on - beside

3. at

4. in - on

5. on - in

6. above

7. under

8. between

9. behind

10. on - at

1. Don't sit in/ on/ under this stool. It's broken

2. My grandma is sitting in/ on/ at the amrchair on/ next/beside the fireplace

3.Simon likes to stay in/ on/ at bed all Sunday morning

4.We live on/ in/ at an apartment on/ at/ into a very busy road

5.  I put my book in/ on/ over the table in/ at/ on the dining room

6. There is a clock under/ next to/ above the teacher's desk

7. He always hides the key on/ at/ under the doormat

8. Mary is sitting under/ between/ behind her parents. They are watching TV

9. On a bus, passengers sit in front of/ behind/ between theh driver

10. You can see children's books in/ on/ at the booksheft to/ at/ in the corner