Answer: I think it is either #1 or #2 not sure.
Explanation: I took the exam and I chose the 3rd option and I got it wrong. It is not made from light material. Anyway I think it's 1st more than the 2nd. Good day!
The subjunctive mood is necessary
2.las ventanas no son de vidrio pero si tienen mallas para cubrirlas.
3.adecuadas/sostenerse
5. Los moradores / residir / el peligro
8.debido a / desarrollo / los sismos/ desalojados
9. El exterior / adobe
