My father __________ free. He can’t play with me.

 --Driving less, walking more is good for our health. --So I’d rather_____ an hour’s walk to work than consider ______ a car. 

—_____ swim in the river? — oh, no. Our teacher told us ____ here. It’s dangerous. 

- Some children can't afford ________ necessary stationary.   - Let's donate our pocket money to them.

— Is there a library in Gaochun? — Yes, a new library _______ and is now open to the public.