Question

rewrite the sentences using passive voice(пассивный стан)
1)They received a patent for the invention of this medicine fifteen years ago.
2)Who discovered the penicillin?
3)They are untrodusing new software now.

Answer 1

1) A patient for the invention of this medicine was received by them fifteen years ago.
2) Who was the penicillin descovered by?
3) New software are being intodusted now.