ubahlah kalimat ini menjadi kalimat pasif. Mohon bantuannya lagi. Dan itu ada beberapa yg saya coba kerjakan sendiri. Mungkin bisa dikoreksi juga.

1. the soil was dug to plant some trees.
2. how to write a business letter is learnt by the students.
3. the grass in the garden was cut.
4. some pieces of cake are eaten by Willy in the living room.
5. the washing machine was used to wash the cloth yesterday.
6. the deer was shot by rama in the forest.
7. some comics are brought to be read on vacation.
8. the bridge was built by the villagers last sunday morning.
9. the key was put on the table.
10. my favourite song is sung by the singer.