5.4.4 Use the correct Passive Voice form

1. Pavlodar … (to situate) in the north-east part of Kazakhstan. 2. Bayanaul National Park, the most picturesque places of the country … (set) within a hundred kilometers from Ekibastuz. 3. In 1720 Koryakovsky mail outpost … (to establish) on the right bank of the Irtysh. 4. In 1838 the outpost … (to transform) into stanitsa of the same name, and in 1861 into the city of Pavlodar. 5. In winter frosts are severe and the river … (to freeze) usually over. 6. The ice-city … (build) up on the embankment every winter. 6. The ice-city … (to break) by the end of February last year.