Rewrite the sentences using Perfect Participles or Perfect Gerunds

1. Having spent his childhood in Osio, he knew the city well. 

2. Having spent nearly all our money, we couldn't afford to stay at a hotel.

3. Having been hunted chose to extinction, the rhino is once again common in this area.

4. Having saw people suffer global warming consequences, we decided to cut down on carbon footprints.

5. He denied having said that he would take responsibility for his company's damage to the area.

6. He was admired for having donated a lot of money for environmental protection campaigns.

7. Having had a program uninstalled, he restarted the computer.

8. Having finished all his homework, he went to bed.

9. He denied having dumped rubbish into the river.

10. Tom suspected of having cut down the tree in the garden.