Active and Passive Voice

Rockets were invented by the Chinese about A.D. 1000.

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• passive

These rockets were fired by soldiers at enemy armies and usually caused panic.

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In thirteenth-century England, Roger Bacon introduced a better form of gunpowder.

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• passive

The first liquid-fuel rocket was launched by the American Robert Goddard in 1926.

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Robert Goddard wrote a pamphlet that anticipated almost all future rocket developments.

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• passive

The pirate raised the sails.

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• passive

The plane was flown by the pilot

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• passive

The poodle chased the squirrel.

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• passive

The sublime meal was cooked by the chef.

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• passive

The students completed the quiz.

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• passive