Change into the Passive Voice

1) Somebody was cleaning the room when I arrived

2) Mom has cooked dinner

3) Next week Nick will finish his report

4) He buys flowers for her every day

5) The cat caught a mouse yesterday

Срочнооо!!!

The room was being cleaned by somebody when I arrived. Dinner has been cooked by mum. His report will be finished by Nick next week. Flowers are bought by him for her every day. A mouse was caught by the cat yesterday.