Какую страдательную форму глагола нужно использовать:
- Present Indefinite Passive или Present Continuous Passive?
1. Where are your friends? - They (show) around the city.
2. Many accidents (cause) by dangerous driving.
3. The witness (question) by the police inspector now.
4. The old motor-way (use) by many people, but it's not very convenient, that's why a new ring-road (build) in the city.
5. Beautiful forniture (make) at this factory.
6. Young people (give) a lot of advice by their parents.
7. You can't use the printer now, it (fix).
8. Dinner usually (serve) at 1 a.m.
9. Wait a little! Dinner still (cook).
10. What are you doing here in the hall? - My room (clean).
11. This book often (refer to).
12. What question (discuss) at the moment?
13. He is such a nice chap. Why he so often (laugh at)?

- Past Indefinite Passive или Past Continuous Passive?
1. The novel "War and Peace" (write) by Tolstoy.
2. When they entered the auction-hall, this painting (sell).
3. He couldn't go out as his suit and shirt (clean).
4. His friends (fine) for exceeding speed limit yesterday.
5. They (ask) many questions at the exam?
6. I didn't realize at that moment that i (follow).
7. When America (discover)?
8. Many buildings (destroy) during the Great Fire in London.
9. We weren't allowed to enter the hall, because it (air).
10. Our test-papers still (check), when we came two hours later.
11. When i entered the classroom, student Popov (examine).
12. The letter to their company (send) by fax an hour ago.
13. What film (demonstrate) in the lecture room now?