When he was a boy,he used to go there and watch A,to repair

When he was a boy,he used to go there and watch A,to repair bicycles B,bicycles to be
When he was a boy,he used to go there and watch
A,to repair bicycles B,bicycles to be repaired C,bicycles being repaired D,repairing bicycles
______the diamond,he had to look for a place to hide it
A,Having stolen B,Having been stolen
C,Stolen 原因