—What should we pay more attention to if we go out for a mountain camp. —Nothing special. Take a special pair of glasses ______the wind there is strong and cold.
– What _______to stop this world _____hungry? --- Birth control.
We _______-word from him so far. Where could he be?
His idea is ______ you’d better ____ a jar of jam at home.
Products made in this factory ____ well; they have sold ___all their products.
Farmers grow crops either to ____their family ___to sell.