traffic light - It tells cars and people when to stop and go., take turns - You go first, then I go. We do it one by one., polite - Nice and kind. You say “please” and “thank you.”, clean up - Make a place tidy. Put trash in the bin., litter - Trash on the ground., librarian - A person who works in a library and helps you find books., crossing guard - A person who helps children cross the street safely., principal - The boss of a school., lifeguard - A person who watches people at the pool or beach and helps if they are in danger.,

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