Answer:
The reason why Holmes put his ear to the ground was beacuse his boss told him to. Also so he kept his ear to the ground, so that he would be the first to get a new idea.
Answer:
Mis abuelos me llamaban todos los sabados.
Explanation:
Llamaron would translate as "call" which would be "My grandparents call me every Saturday" - which doesn't make a lot of sense in this context.
Llamaban would be the one right.
Native speaker over here.
