Question

como pasarlos a voz pasiva (passive voice)
1. we don't cut the trees
2. She doesn't play the guitar
3. I didn't understand the class
4. You won't read the book
5. He wouldn't listen to you
6. Mary hasn't finishet the homework
7. They haven't made a cake
8. we hadn't baked cookies
9. I wasn't mopping the floors
10. we aren't closing the door

Answer 1

1. We don't cut the trees.
     The trees aren´t cut by us. 
2. She doesn't play the guitar.
     The guitar isn´t played by her. 
3. I didn't understand the class.
     The class wasn´t understood by me. 
4. You won't read the book.
     The book won´t be read by you.
5. He wouldn't listen to you.
     You wouldn´t be listened by him.  
6. Mary hasn't finished the homework.
    The homework hasn´t been finished by Mary.
7. They haven't made a cake.
    A cake hasn´t been made by them. 
8. We hadn't baked cookies.
    The cookies hadn´t been baked by us. 
9. I wasn't mopping the floors.
     The floors weren´t  being mopped by me. 
10. We aren't closing the door.
     The door isn´t  being closed by us.