1. 36 students in this classroom
2. a book on the desk
3. a bottle of milk in the fridge.
4. 50 trees in the park
5. four boys in my group
6. a child in the bedroom
7. two children in the garden
8. 5 pencils in the box
9. 20 cigarettes in a packet
10. a clock on the wall
11. seven days in a week
12. a box on the table?
13. eleven players?
14. good cafés in Casablanca?
15. exceptions to every rule
16. an important match on Sunday