Помогите пожалуйста Упр 5

1 These are ships.
2. These are bags.
3. These are masters.
4. These are factorys.
5. These are books.
6. Those are women.
7. Those are children.
8. These are seamen.
9. These are sails.
10. Those are ladys.
11. Those are boxes.
12. The children are in the room.
13. The books are on the shelf.
14. The ships are at the port.
15. The beaches are clean.
16. The doors are white.
17. The buses are red.
18. The cadets are at the blackboard.
19. The matches are on the table.
20. The factorys are in the city.