Turn from Active into Passive
39) Professor Golding found some jewellery in the rubbish
40) someone had thwon it out
41) The Professor took in to the police
42) the police are searching for the owner
43) they have asked people lost of questions so for
44) they will keep the jewellery in a safe place

 39) Some jewellery was found in the rubbish by Professor Golding .40) It had been thrown out by someone.41) It was taken to the police by the Professor.42) The owner is being searched for by the police.43) Lots of questions have been asked so far.44) The jewellery will be keeping in a safe place.