My father buys newspapers every morning. (действительный залог)

Newspapers are bought by my father every morning . (страдательный залог)

We buy food for our pets once a week.(действительный залог)

Food for our pets is bought by us once a week.(страдательный залог)

My elder brother uses the computer more than I do.(действительный залог)

The computer is used by my elder brother more than by me. (страдательный залог)

Our parents'  friends visit the theatre once a month. (действительный залог)

The theatre is visited by our parents' friends once a month . (страдательный залог)

Verified answer

My father buys newspapers every morning. (Active)

Newspapers are bought  by my father every morning . (Passive)

We buy food for our pets once a week. (Active)

Food for our pets is bought by us once a week . (Passive)

My elder brother uses the computer more than I do. (Active)

The computer is used by my elder brother more than by me. (Passive)

Our parents'  friends visit the theatre once a month. (Active)

The theatre is visited  by our parents'  friends once a month . (Passive)