Преобразуйте действительную конструкцию в страдательную: 1.farmers breed dairy cows for milk. 2.many beekeepers have lost their bees because of the parasitic mite varroa. 3.you will always have honey on your table if you start keeping bees. 4.lightning performs some very useful services for a mankind. 5.he is distributing fertilizers now. 6.they paid all the foreign workers in local currency. 7.the use of farm machines will have decreased the amount of human labour by the end of the year.

1. Dairy cows for milk are bred by farmers.
2. Bees have been lost by many beekeepers because of the parasitic mite Varroa.
3.Honey will be always on your table if you start keeping bees.
4.Some very useful services for a mankind are performed by lighting.
5.Fertilizers are being distributed by him now.
6.The foreign workers were paid in local currency.
7.The amount of human labour will have been decreased  because of the use of farm by the end of the year. 

1) Dairy cows are bred by farmers for milk.
2) Bees have been lost by many beekeepers because of the parasitic mite Varroa.
3) You will always have honey on your table if bees will be kept by you. 
4) Some very useful services for a mankind are performed by lightning.
5) Fertilizers are being distributed by him now.
6) Local currency was paid to all the foreign workers by them.
7) The amount of human labour will have been decreased by the end of the year with the use of farm machines.