ANSWER:

(1)

• vacuum cleaners
• vacuum cleanersrefrigerators
• vacuum cleanersrefrigeratorswashing machines

(2)

• To save as much energy as possible, we must use large appliances together. We can also install a programmable thermostat, it is the one of the most energy- efficient to have in home.

(3)

• Saving electricity at home is important because it can not only help reduce our household need for energy but also in turn help reduce demand for polluting fossil fuel, and can also save your money.

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