passive voice(simple past
it is formed by the verb to in the simple past+ THE PLAS PARTICIPLE OF THE MAIN VERB
the word television was used for the firish time in 19;00
a machine called pantelegraph was in vented in 1862
if you konow whon or did the action and if you think it is relevant to mention this
information,ou place e the agent at the sentence preceded by the word b
the fiest moving silhvete images were created by john baird
the first color tv program was brondcast by cbs
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tá certo , com alguns erros de digitação
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