Помогите с пассивным залогом , 3 номер

1. Environment friendly substances are used by us in our production process.
2. The aims of their negotiations have been achieved by them.
3. This oil company is going to be acquired by somebody soon.
4. Their marketing operations have been expanded by them recently.
5. Your monthly bonus will be increased by me. 
6. I was greatly frustrated by this failure at the negotiations. 
7. Our advertising campaign is aimed by us at the young generation. 
8. The consignment against all risks has been insured by me.