Your answer is going to be C
Answer:
hago; pone
Explanation:
por favor marque el más inteligente
1) Aquellas, éstas
2) Esos, aquellos
3) Aquellos, estos
4) Esta, aquella
5) Este, ese
6) Esas, aquellas
7) Estos, aquellos
The answer is A because all the others are wrong. You are saying that Marcos was studying when I arrived at his house.
Juan a viajado mucho.
Hope this will help