Answer:
The sentence that we must complete is:
" El ___________ está activo y se puede escalar en Guatemala."
A rough translation of this is:
"The ____ is active and can be climbed in Guatemala"
Because it is active and it can be climbed, we can assume that here we are talking about volcano, or "Volcán" in Spanish.
So te full sentence would be
El volcán está activo y se puede escalar en Guatemala.
