@khanacademy @BillGates Which's next? GMAT?
We're one of @BillGates's top stories of the year: SAT test prep is now free for everyone! http://b-gat.es/1MjoJno pic.twitter.com/59jdORuFpD
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@khanacademy We are very pleased to share with you http://presentationtube.com , a network for recording & sharing video presentations for freeThanks. Twitter will use this to make your timeline better. UndoUndo
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@khanacademy@BillGates Superb!! Access to higher education is so often limited by test scoresThanks. Twitter will use this to make your timeline better. UndoUndo
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@khanacademy @BillGateyou khan academy though my kidThanks. Twitter will use this to make your timeline better. UndoUndo
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