Эти предложения из active в passive ! 1. kazakhstan has inherited the soviet system of training specialists. 2. scientist have made a great contribution in development of kazakhstan as an independent country. 3. they have recently discovered and described rare animals and plants previously unknown to the people.

1. The Soviet system of training specialists was inherited by Kazakhstan
2. A great contribution in development of Kazakhstan as an independent country was made by scientist
3. Rare animals and plants previously unknown to the people were had recently discovered by them