Final answer:
The correct pair of verbs is 'veía, escribía'.
Step-by-step explanation:
The correct answer is option D. veía, escribía.
The sentence translates to:
While I was watching television, my brother was writing an article for the school newspaper.
In this case, we use the imperfect tense (veía) to describe an ongoing action in the past, and the imperfect tense (escribía) for another ongoing action at the same time. These verb forms correctly match the subject (yo) and the possessive adjective (mi hermano) in the sentence.
Learn more about Spanish verb conjugation