Question

Поставить предложения в Passive Voice 1) they helped the poor people 2) he built a new house last year 3) they visit their granny every week 4) tomorrow he will send your letter

Answer 1

1) Poor people were helped.
2) A new house was built last year.
3)Granny is visited every week.
4)The letter will be sent tomorrow.
Ах, да, спросишь "почему нет he или they?", просто можно не говорить/не писать в предложениях неопределённые местоимения, а если какой-то объект/ имя человека, то его обязательно нужно писать/говорить в конце предложения.
(Например: The letter was sent by Peter)

Answer 2

1. The poor people were helped by them.
2. A new house was built by him last year.
3. Their granny is visited by them every week.
4. Your letter will be sent by him tomorrow.