1. The chairperson removed certain members of the committee. ( Passive)
2. Morgan used special software for this research. ( Passive)
3. A policy was formulated by the government. (active) 
4. In the first stage, we designed a logo and found a market. ( passive) 
5. An instruction manual was then developed by them.

Answer 

1.Certain members of the committee were removed by the chairperson.
2. Special software was used for this research by Morgan.
3.The government formulated a policy.
4. A logo was designed and a market was founded by us in the first stage.
5. They then developed an instruction manual.