Use the present indefinite passive, the past indefinite and the future indefinite passive: 1. the problem (to discuss) next week? 2. he (meet) at the airport three hours ago. 3. i (not to ask) at the lesson. change sentences using passive structures : 1. they sold stamps in the post office. 2. people built new shop last year. 3. children will play hide-and-seek in the evening 4. we don't translate poem at home. 5. people didn't visit the boy last week.