Замените формы глаголов Indefinite Active формами глаголов Indefinite Passive. 1.My relatives often spend much time together.

1. Much time together is often spent by my relatives. 2. Mathematics is usually taught by him at school. 3. A museum was visited by them last Sunday. 4. Her friend will be met by Helen near the University tomorrow. 5. My new friend will be introduced by me to the parents tomorrow. 6. A custom-house was set up for the examination of foreign goods in 1749 by people. 7. The custom-house was replaced with the fortress in 1761. 8. The Don river is usually nicknamed as \"Father Don\" by the inhabitants. 9. Rostov-on-Don is always called Rostov-on-Don the gateway to the Caucasus by people. 10. That church will be restored next year.