Question

change the voice of following 1) he should be obeyed by his son 2) can you do me a favour ? 3) we should trust in god 4) this food is not to be eaten by Ravi

Answer 1

1) His son should obey him. (Passive to active)

2) Could a favor be done for me by you? (Active to passive)

3) Ravi should not eat this food. (Passive to active)