Complete the sentences with the verbs in brackets in the passive voice. Use the present simple, past simple, future simple or present perfect.

1. My laptop computer __________________ (not repair) yet. It still doesn’t work.

2. The first 3D film __________________ (show) in 1922.

3. Blu-ray technology isn’t very popular, so, in my opinion, it __________________ (not use) much in the future.

4. This website is extremely popular, so it __________________ (visit) by millions of people every day.

5. Who __________________ (the email / invent) by?

6. I’m afraid these two computers __________________ (not connect) to the Internet, but you can use the ones over there.

7. How long __________________ (electric cars / produce) in this factory?

8. People knew about electricity in the past but it __________________ (not use) commonly until the late 19th century.

9. How often __________________ (these machines / service) by a technician?

10. In the opinion of most people, we __________________ (not contact) by any alien civilisations yet.