Make the passive forms in these sentences negative . Make other

Make the passive forms in these sentences negative . Make other necessary changes .
1.A new show is being broadcast on TV at the moment . -
2.The letter has been sent today . -
3.When Bob returned home , the cakes were being baked in the oven . -
4.Peter said the film had already been shot . -
5.The scary fairy tale is being read to the children now . -
6. The policeman said that the criminal had been already caught . -
7.The old fable is being read to the children now . -
8. The stage director said the sceneries had been replaced . -
9. Your camera is being looked for now . -
10.A new play was being staged when Mr Walters returned from his trip . -