Final answer:
To fill in the blank in the sentence 'Yo quiero ahora', the appropriate form of the verb 'dormir' is 'duermo'.
Step-by-step explanation:
To fill in the blank in the sentence 'Yo quiero ahora', we need to use the appropriate form of the verb 'dormir' (to sleep). The correct form to use is 'duermo' which means 'I'm sleeping' or 'I sleep' in English. Therefore, the correct answer is OD. duermo.
Learn more about Conjugation of the verb 'dormir' (to sleep)