Please don't get the blackboard ______.(clean)

Please don't get the blackboard ______.(clean)
Please don't get the blackboard ______.(clean)

Please don't get the blackboard ______.(clean)
uncleaned
get sth. done
解释为:不要不擦黑板.
如果你要的是：不要擦黑板的话,就是cleaned
一定是被动,因为黑板是被擦的……