I agree with Lee-annes comments but would suggest you make the pass as deep into your attack as possible to a side away from defenders.  If the ball goes out of court, over a third or is picked up the opposition your team has more time to reset to delay/intercept the next pass.  Looking to pass behind is an option but a risky one which should be done early in the 3 second timeframe to a very safe offer as leaving it to the last moment leaves no other option but to potentially make a risky pass. Passing decisions should follow (1) look down court first, (2) look for backup from players behind and (3) if still no safe offer then look down court again and if necessary, pass into safe space deep in next third.