Articles: a, the, some exercises

1. There is pen on desk.
2. pen is on desk.
3. There were boys in hall.
4. There is water in bottle.
5. lamps are over tables.
6. dog was under bed.
7. There are letters in letter-box.
8. yellow pencil is in pocket.
9. little girl is in middle of picture.
10. There were mistakes in exercises.
11. entrance was at back of building.
12. Is there store in village?
13. There will be visitors at club.
14. school building is on right-hand side of street.
15. picture is at end of book.