Przekształć podane niżej zdania w stronie czynnej na zdania w stronie biernej.
They don't produce vaccines in this factory.

We have recorded five songs so far.

I will upload the photos at the weekend.

Alexander fleming discovered penicillin in 1928.



Odpowiedź :

Vaccines aren't produced in this factory.

Five songs have been recorderd so far.

The photos will be uploaded at the weekend.

Penicillin was discovered in 1928 by Alexander Fleming.

Vaccines are not produced in this factory.

Five songs have been recorded so far.

The photos will be uploaded at the weekend.

Penicillin was discovered by Alexander Fleming in 1928.