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What do you think of the most important invention in the world? The TV? The printing? The telephone? Or the computer? A report shows that they are not the only important inventions. Here are three other important inventions.
One of the simplest inventions is the toilet. Before toilets, waste ran into rivers from people’s houses. Illnesses were common in big cities, and it was often difficult to find clean drinking water.

Important _______________
Some most important inventions	The TV, the _______, the _______, the computer
Three other important inventions	Before the inventions
the __________	________ ran into rivers from people’s houses
_________ were common in big cities
It was often difficult to find _______ drinking water
hay, animal food	Most animals were killed in ______ because there wasn’t enough food in winter
___________	Reading, writing and “close work” would be difficult for the people over _____________