Yo __viví__ en México cuando era niña.
Viví is the past form of "I lived", and the sentence is talking about the past, so viví<em> </em>is the correct option.
Juan y yo subimos unas Colinas enormes y nevadas.
R=ENORMES Y NEVADAS
Ya que es cuando describes como es algo.
Answer:
The answer is clearly option a) "eras"
Explanation:
Since it keeps the verb in the past
The answer is (usted) because you dont have a personal relationship with this person.
ustedes means you guys
vosotros means all of us
tu is used for someone whom you are close with like a family member or someone whom you have know for a while.