La ex 2 e foarte simplu:
a-pentru substantivele care incep cu o consoana.
an- pentru substantivele care incep cu o vocala.
La ex. 3
Verifici daca propozitile sunt false sau adevarate.
Don't expect to give your answer and you lose time trying to post the exercise, you better do the exercises because you learn something from this exercises and those will use you for life. Whatever its are the hell of easy. We are in modern age and we've means of information. That was just a advice and sorry for manifestation and forgive me because I'm annoying.