text: When I begin to sing , watch that window . " He retreated hastily to a position on the main drive , and began in a deep roar , coupled with an unsteady gait , the following ditty : I am a Soldier A jolly British Soldier ; You can see that I 'm a Soldier by my feet … It had been a favourite on the gramophone in Tuppence 's hospital days .
  
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  He ran away quickly to a spot on the main drive and started to sing the ditty about British soldiers .