11. The waste of lumber in cutting railroad ties is too great.
12. The rotation of crops enriches the soil.
13. Apples are more easily gathered than cherries.
14. Efforts should be made to keep the birds in our city parks.
15. Every boy should learn a trade.
16. Peddlers should not be allowed to call their wares.
17. Great crowds gathered in the city during aviation week (or any celebration).
18. The electric toaster is good for hurry-up breakfasts.
19. Ironing with an electric iron is more convenient than with the old-fashioned kind.
20. The wireless apparatus makes sea voyages safer than before.