Какой залог у этих предложений активный или пассивный? Срооочно плизз

1 During first 3 months the baby's organs are being formed
2 The doctor had isolated the child before he made the diagnosis of the
scarlet fever
3 He needs immediate surgical operation

1 During first 3 months the baby's organs are being formed Пассивный2 The doctor had isolated the child before he made the diagnosis of thescarlet fever Активный3 He needs immediate surgical operation Активный