I was surprised by your behaviour This sentence is grammatically correct Now, (Active voice) The news - English - Prepositions

Question

I was surprised by your behaviour This sentence is grammatically
correct

Now,
(Active voice) The news surprised me
In passive voice this is written as: I was surprised by the
news

I was surprised at the news of him passing the exam is
grammatically correct How? Shouldn't we use BY?

Anushka Singhal · Accepted Answer

Dear student,

The adjective surprised can take at/ by interchangeably Thus, using
'at' or 'by', both would be correct

Regards

I was surprised by your behaviour. This sentence is grammatically correct. Now, (Active voice) The news surprised me. In passive voice this is written as: I was surprised by the news. I was surprised at the news of him passing the exam is grammatically correct. How? Shouldn't we use BY?