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People used to cook on firewood.
Today people cook using gas.
People are transported by cars with electric motors.
In the past, people used to get around by cars with combustion engines.
People today communicate through messaging applications or email by the internet.
Today students get information from the internet.
Students used to get information from libraries.
People used to write faxes.
Now people negotiate with paper money.
In the past, people used to barter.
NOW
BEFORE
EDUCATION
HOME LIFE
TRADE
COMMUNICATION
TRANSPORTATION
