Question

Destaque os verbos:

Scientists from the Liverpool School of Tropical Medicine and the University of Queensland have solved the mystery of how a fish with sharp fangs gives a pain-free bite.
The researchers discovered that the fang-blenny, a tiny reef-dwelling fish, has a venom that is laced with pain-killing chemicals.
They say the discovery, published in the journal Current Biology, is an example of the medical secrets that are hidden in our oceans.

Answer 1

-have solved - gives - discovered - has - laced - say - published - hidden

nao tenho certeza quanto a bite e pain-killing..
mas acredito q o segundo seja mais uma característica do que um verbo

espero ter ajudado