A traditional way of writing messages on paper and sending them through the postal service. People used _________ for personal and official communication before phones and the internet.
letters
A device that allows people to talk to each other over long distances using electrical signals. Invented in the 19th century, it was one of the first tools for voice communication.
telephone
A modern way of sending electronic messages using the internet. It can include text, pictures, and files, and is widely used for both work and personal communication.
Email