Some of these sentences contain passive verbs or verbs that are a form of "be." Indicate those sentences by choosing "passive voice." Indicate sentences in active voice by choosing "active voice."
Frederick Douglass was annoyed by people who spoke openly of helping on the underground railroad.
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People who spoke openly of helping on the underground railroad annoyed Frederick Douglass.
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Douglass said that by talking about it, these people had turned the "underground railroad" into an "upperground railroad."
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Although these people were deserving of praise, their open talk endangered escaping slaves.
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People who boast alert slave owners to possible escape routes.
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Escaping slaves would often be caught by professional slave hunters at the houses of those who talked openly.
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All slaves were threatened by any information that increased the slave owners' knowledge.
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Whenever slave owners suspected some of the escape routes, the slaves lost their courage.
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Frederick Douglass understood the slaves' fears very well; his first attempt to escape had failed.
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Professional slave breakers beat and tortured runaway slaves until the slaves submitted or died.
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A slave breaker gave Douglass severe, disfiguring scars all over his back.
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Years later, northerners were convinced by those scars that Douglass spoke the truth about slavery.
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Douglass told his story in several novels.
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"The Narrative of the Life of Frederick Douglass: An American Slave" was one novel written by Douglass.
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Frederick Douglass was the most famous abolitionist of his time.