Answer:
1. Ayer estudié por la noche.
2. ¿Que hacían ustedes cuando empezó a llover?
3. Mis parientes de Colorado venían todos los veranos.
4. Primero anduve por el parque; luego encontré a Lola.
5. El año pasado viajamos por Sudamérica.
6. Yo dormía ocho horas cuando tenía once años.
Explanation:
In Spanish the past tense is the one where the actions carried out in the past tense are described, and the imperfect tense is the one where the actions in the past that are still part of the present are described, therefore in the previous activity we must identify at what time this each prayer and thus turn it into the opposite time that we are being asked; that is, if a sentence is in the past tense we must transform it to imperfect and vice versa.
Answer:
1. nunca
2. algún
3. nadie
4. ni siquiera
Explanation:
Your answers 1 to 3 are ok.
Answer 4 is wrong.
The difference between "tampoco" and "ni siquiera" is that "tampoco" requires a precedent, that is, before say it you must have said "no".
Ex:
A: ¿Te gusta el cine?
B: No.
A: A mí tampoco.
"Ni siquiera" it is used to express the denial of a "minimum" within more than one possibility.
Example:
"No hay ni siquiera un gato aquí" ("There is not even a dog here") implies one of the following possibilities (or another), depending on the context:
a) They were looking for cats and were disappointed because they didn't find one.
b) They were looking for an animal and were disappointed because they didn't find a cat, which would be the easiest to find.