Make the sentence grammatical: One important technology that Rogers mentioned is the innovation of refrigerator in 1930 for electric and gas refrigerators.
The invention of the refrigerator is a great invention, but it is not the only one.
The invention of the refrigerator is a great invention, but it is not the only one.
The invention of the refrigerator is a great invention, but it is not the only one.
The refrigerator is a great invention, but it is not the only one.
The invention of the refrigerator is a great invention, but it is not the only one.
The invention of the refrigerator is a great
The invention of the refrigerator is one of the most important inventions of the 20th century.
The invention of the refrigerator was a major breakthrough in the history of technology. It was a major step forward in the development of modern life.
The refrigerator is a device that helps to keep food and drinks cold. It is a device that is used to keep food and drinks cold.
The refrigerator is a device that is used to keep food and drinks cold. It is a device that is