Public service advertisements are often run _____ free, and are ______ to educate people about health, safety, or any other issue which affects public welfare

Harry Potter stories are____both theteenagers and adults.

The FIFA World Cup is an event which many football teams compete each other

Researches are convinced ______ the positive effect of laughter ______ physical and mental health

You can’t ________ being punished if you break the law