Определить время и залог сказуемых, не получается (( 1. the grain markets have greatly changed over the last 25 years in the united states and europe. 2. both have high levels of the government interference in their agriculture. 3. the partnership is automatically liquidated if any of the partners leaves the business or dies or becomes too ill to carry it on.

1. The grain markets have greatly changed over the last 25 years in the united states and europe. ---Active voice,Present Perfect

2. Both have high levels of the government interference in their agriculture.Active Voice ,Present Indefinite 

3. The partnership is automatically liquidated ( Passive Voice ,Present Indefinite )if any of the partners leaves the business or dies or becomes too ill to carry it on.Active Voice ,Present Indefinite