Passive voice- Present Perfect

I have already finished my work.

My work ...............already been finished.

The singer hasn't recorded the new song yet.

The new song ..........................by the singer yet.

Our class has discussed a new project on ecology.

............................has been discussed by our class.

My neighbours have found a small dog.

A small dog has been found by................

Have they opened the new shopping mall yet?

............the new shopping mall been opened yet?

They have sent 20 letters to Santa Claus.

20 letters to Santa Claus..............................by them.

My father hasn't painted my room yet.

...............................................by my father.

Have they practised a new dance at school?

Has.........................been practised by them at school?

The cat has broken her favourite mug.

Her favourite mug........................................by the cat.

Mike hasn't watered the plants in his garden.

The plants in Mike's garden .......................................