Passive voice – fill in the present simple, past simple, present perfect, future simple 1. Most of things we buy in China these days. (make)

2. I study Art – it in my school. (teach)

3. stamps in supermarkets yesterday? (stamps/sell)

4. English here. (speak)

5. wine in England some years ago? (produce)

6. Mistakes all the time. Nobody's perfect. (make)

7. Breakfast from 7.30 to 10.00. (serve)

8. These programmes by people all over the world next year. (watch)

9. The artist has sung three song.
three songs by the artist?

10. Mr Brown has taken the umbrellas.
Yes, the umbrellas by Mr Brown.

11. The policeman does a good job.
a good job by the policeman?

12. Did my friends find my keys?
Yes, my keys by my friends.

13. The scientist wrote a book.
A book by the scientist

В английском языке страдательный залог (passive voice) используется, когда мы хотим сфокусироваться на объекте действия, а не на том, кто выполняет это действие. Для формирования страдательного залога мы используем форму "be" причастие (past participle).

Вот решение задачи с объяснениями:

Most of things we buy are made in China these days. (present simple: are + made)I study Art – it is taught in my school. (present simple: is + taught)Were stamps sold in supermarkets yesterday? (past simple: were + sold)English is spoken here. (present simple: is + spoken)Was wine produced in England some years ago? (past simple: was + produced)Mistakes are made all the time. Nobody's perfect. (present simple: are + made)Breakfast is served from 7.30 to 10.00. (present simple: is + served)These programmes will be watched by people all over the world next year. (future simple: will + be + watched)The artist has sung three songs. Have three songs been sung by the artist? (present perfect: have + been + sung)Mr Brown has taken the umbrellas. Yes, the umbrellas have been taken by Mr Brown. (present perfect: have + been + taken)The policeman does a good job. Is a good job done by the policeman? (present simple: is + done)Did my friends find my keys? Yes, my keys were found by my friends. (past simple: were + found)The scientist wrote a book. A book was written by the scientist. (past simple: was + written)

Все эти предложения подчиняются правилу формирования страдательного залога, указанному выше.