PSAs are often run _____ free, and are ______ to educate people about health, safety, or any other problem that affects public welfare.
I _____ for five minutes; why don’t they come?
It’s good that we _____ to the park because it’s started to rain.
. Look at that little boy wandering about — perhaps he _____ his mother.
“You’ve left the light on.” “Oh, so I have. _____ and turn it off.”
The bridge, which _____ 1688, needs repairing.