1, I don't have much money now, but I want to buy a house in Phu Cuong.
-> If I have much money now, I will buy a house in Phu Cuong.
2, Light pollution happens. There is a change in animals' living patterns.
-> If light pollution happens, there will be a change in animals' living patterns.
3, The Walt Disney Studios, the famous movie company, has produced hundreds of cartoons for children.
-> Hundreds of cartoons for children has been produced by the Walt Disney Studios- the famous movie company.