Active voice or passive voice?
1) The big cake was baked by my mother.
2) My father built this house.
3) The house was built in 1899.
4) Our planet is wrapped in a mass of gases.
5) I gave him a book for his birthday.

1) The big cake was baked by my mother. passive voice

2) My father built this house. Active voice

3) The house was built in 1899. passive voice

4) Our planet is wrapped in a mass of gases. passive voice

5) I gave him a book for his birthday. Active voice