1.Mum gave me a computer as my birthday presnt.
A computer was given to me as my birthday presnt by my mum.
2.The sun made the man take off his coat.
The man was made to take off his coat by the sun.
3.They are going to build a tall building here.
A tall building is going to be built here.
4.When did she cook supper yesterday?
When was supper cooked by her yesterday?
5.Did he break the window yesterday?
Was the window broken by him yesterday?