1.the farmer tied the cow to the bamboo bush
-> The cow was tied to a bamboo bush by the farmer's uncle
2. My mom made me a shirt
-> I got a shirt by my mother
3. My grandmother bought me a cake
-> I got a cake from you
4. I snatched the book from her
-> the book was snatched by me from her hand
5. The cow pulls the rice cart home
-> the rice cart was pulled home by the cow