Thread: Los científicos han probado que los humanos son los culpables
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Old February 20, 2012, 07:18 AM
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Rusty Rusty is offline
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Join Date: Aug 2007
Location: USA
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Native Language: American English
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The past participles 'proved' and 'proven' are both acceptable in American English. Which one you choose to make your own may be largely based on what others around you say.
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