1)A letter was being written all the evening by myself.

2)My report was being criticized at the conference by them.

3)This article was being translated all the week by him.

4)A new film was being discussed by my brothers when we came home.

5)Trees were being planted in the morning by them.

1) I was writing a letter all the evening.- А letter I was  being written by me  all the evening.

2) They were criticizing my report at the conference.- My report was being criticized by them   at the conference.

3) He was translating this article all the week.- This article  was  being translated by him  all the week.

4) My brothers were discussing a new film when we came home.- A new film was being discussed by my brothers  when we came home

5) They were planting trees in the morning- Trees  were  being planted by them in the morning