Final answer:
The correct direct object pronoun for the sentence 'Practicas los verbos irregulares?' is 'los'.
Step-by-step explanation:
The correct direct object pronoun to use in this question is los for the sentence 'Practicas los verbos irregulares?'. So, the correct question is '¿Los practicas?'. The pronoun 'los' is used because in Spanish, 'los verbos irregulares' is a masculine plural noun. The other options 'las' and 'lo' are incorrect because they don't match the gender and number of the noun.
Learn more about Spanish Pronouns