water contamination start to exacerbate?

huynhvantinhftu

Senior Member
Vietnamese
I hear a person say the sentence (1)
(1) Environment pollution and water contamination start to exacerbate.

But in my opinion, exacerbate is a transitive verb, so I think it must be "be exacerbated"
(2) Environment pollution and water contamination start to be exacerbated.

I hope to receive your advice.
Many thanks for your time and help.
 
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