Ответ:

Present Simple Passive:

1) The room is cleaned yesterday.

2) New houses are built in our city every year.

3) The book of this writer is published in a month.

4) The trees are whitewashed by our pupils every spring.

5) Tea is grown in Ceylon and India.

6) America isn't discovered by James Cook. It's discovered by Christopher Columbus.

Past Simple Passive:

1) The room was cleaned yesterday.

2) New houses were built in our city every year.

3) The book of this writer was published in a month.

4) The trees were whitewashed by our pupils every spring.

5) Tea was grown in Ceylon and India.

6) America wasn't  discovered by James Cook. It was discovered by Christopher Columbus.

Future Simple Passive:

1) The room will be cleaned yesterday.

2) New houses will be built in our city every year.

3) The book of this writer will be published in a month.

4) The trees will be whitewashed by our pupils every spring.

5) Tea will be grown in Ceylon and India.

6) America won't be discovered by James Cook. It will be discovered by Christopher Columbus.