“Who,planted,this,tree,here?”,The,correct,passive voice,of,this,sentence,is- "> “Who planted this tree here?” The correct passive voice of this sentence is- ">
[37th Bcs Preliminary : 2016]
1. By whom was the tree planted here?
2. Who the tree had been planted hereby?
3. The tree was planted here by whom?
4. By whom had the tree been planted here?