PSAs are often run _____ free, and are ______ to educate people about health, safety, or any other problem that affects public welfare

What will happen if a driver gets annoyed in a traffic jam—Many drivers are _____ and they will push into other lanes of traffic or pass other cars.

I will never forget the town____ I spent my childhood.

English is a very important ______.

She refused to _____ the door key to the landlady until she got back her deposit.