Active & Passive Voice — Set 4

Change to Passive Voice: 'He always keeps his promise.'

Change to Passive Voice: 'The police arrested three criminals yesterday.'

Change to Passive Voice: 'She will not help you.'

Change to Passive Voice: 'He knows the answer.'

Change to Passive Voice: 'They play cricket in this ground.'

Change to Passive Voice: 'She has written three novels.'

Change to Passive Voice: 'He has completed the assignment.'

Change to Passive Voice: 'They have built a new hospital.'

Change to Passive Voice: 'The scientist has discovered a new planet.'

Change to Passive Voice: 'I have posted the letter.'