Active: In 21st century scientists are facing some new challenges and inspired to discover new antibiotics as the old antibiotics are ineffective sometimes.
Passive: Louis Pasteur discovered Penicillin in 1889,since then it has made a huge contribution for mankind.
5 comments:
Active - We will discover the fountain of youth!
Passive - No one discovered the fountain of youth, yet!
Passive - No one has discovered the fountain of youth, yet!
Active- I will discover the cure for cancer.
Passive-Bones were discovered by archaeologists in the field.
Active: In 21st century scientists are facing some new challenges and inspired to discover new antibiotics
as the old antibiotics are ineffective sometimes.
Passive: Louis Pasteur discovered Penicillin in 1889,since then it has made a huge contribution for mankind.
Doris: In the first sentence, you have given us the past tense and in the second, the present perfect.
Aman: Your second sentence is in the past tense.
Amanda got the passive right.
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