Трансформируйте предложения в страдательный залог

1. Mr. Kelly brought up the matter of guarantee period.
2. We have already informed them about the prices and terms of payment.
3. With the development of economic ties among the countries people do a great volume of business by male.

1) The matter of guarantee period was brought up by Mr Kelly 2) The have already been informed about the prices and terms of payment by us 3)with the development of economic ties among the countries a great volume of business by male is done by people 3 е предложение сомнительное