Completar frases Passive VoiceVersión en línea Passive Voice in the simple present tense por Patricia Molina - Arlt 1 electricity made water sunlight source solar collected energy Sun water used sun hydroelectric turned built Solar Power . The is the oldest of heat . Today it is to make electricity . Light from the is with panels . These are large panels on the roofs of buildings . They turn the into . This electricity is used to give heat and energy . Hydro Power . Have you ever seen Niagara Falls ? Powerful , aren't they ? We've used river for over 2 , 000 years to make . Today huge dams are on waterfalls . Turbines are by the falling , and electricity is . It is called power .
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