Составьте 3 предложения present perfect пассивного залога, а потом эти же 3 предложения переделайте present perfect активного залога.

That key has been lost Those buildings has been built lately What an aweful smell! It s has been burnt fathere's pie!!My mum has lost her keyThey have built those buildings latelyWhat an aweful smell! It s  my father has burnt his pie!