Correct the mistakes. 1.when was invented the radio? 2.the book was wrote pushkin?

actually, the correct way to write this:

1. when was the radio invented?

2. the book was written by pushkin.

1.when was the radio invented? 2.the book was written by pushkin. или: was the book written by pushkin?

when do their office hours begin?

is mr.bell busy all day?

their office hours don't begin at 9 o’clock.

mr.bell is not busy all day.

the floors are being cleaned этажи чистятся