Question

change into passive voice:
1.what are you thinking off.
2.nobody is knocking at the door.
3.Is the leader not helping the group?

Answer 1

Ans.

1. What are being thought of?

2. The door is being knocked at by nobody. / The door is not being knocked at.

3. Is not the group being helped by the leader?

(I hope that this will help you.)

Answer 2

3 . the group is being not helped by the leader