1)computers do a lot of work. 2)doctors treat illnesses in different ways. 3)they sent me to the conference last week. 4)mothers gave children a few apples. перевести эти предложение в страдательный залог то есть (pasive voice).

1) A lot of work is done by computers.
2) Illnesses are treated by doctors in different ways.
3) I was sent to the conference last week.
4) Children were given a few apples by their mothers.