Complete the sentences with a or an

1. My father is
   [ ]
   artist.
2. Sam wants to buy
   [ ]
   car.
3. She is
   [ ]
   student.
4. There is
   [ ]
   apricot on the table.
5. There is
   [ ] tree in front of my window.
6. There is [ ] sofa in the living room.
7. Emma bought [ ] book yesterday.
8. My mother gave me [ ] orange.