Answer:
The right answer is, A. No, yo no sé.
Explanation:
Because it is the option with the correct conjugation of the verb "to know", and it has a logical relationship with what the question asked expresses.
Answer:
C. Cuál.
Explanation:
Identifying the narrator and the time that a sentence indicates is the first step that must be taken. this is very important to be able to conjugate the verbs, and that these have concordance with what is being expressed
Answer: Cuestan.
Explanation: Cuanto means How much in english, so the question is asking how much those books are going to cost. Whenever you see a Cuanto in a question like that, assume it's talking about a number of something, or money. So Cuestan means cost, in the terms of "How much does this item cost?".