how often can you take the gre 
the gre can be taken once every 21 days up to five times within any 12 month period the number of times you can take the gre resets after 12 months from your first test can i send only my best gre score to schools yes you have the option to send only your best gre scores to schools the scoreselect option allows you to choose which scores are sent to institutions giving you control over which scores they see 