it means Gabriel, as a child my family (to be) a very serious family
1) Le diste a José ese anillo de allí.
2) Le escribimos algunas veces.
3) Te compre este collar.
4) Nos han comprado mamá y papá estos souvenirs en Barcelona.
I am not completely sure about #4 I don’t think there is a word in Spanish for souvenirs but that might be only in my country.
D. The hardships of common and indigenous people
Ustedes would be the correct answer
Los amigos =the friends
Ustedes= your
Your talking about YOUR friends