Serios is the correct answer
Answer: Now let's practice building some sentences in which we use the "preterite" past form of the verb to express a one-time event at a particular point of time in the past. I bought a gift (un Regalo) for my friend. Yo compré un Regalo para mi amigo(a). ... Mary bought a gift for her friend.
Explanation:
Answer:
The noun goes before the adjective.
Explanation:)
I believe the answer for this question is A or C