Final answer:
The correct pronouns to replace the direct and indirect objects in the sentence 'Tengo que teclear mi ensayo' are 'lo' and 'lo' respectively.
Step-by-step explanation:
The correct pronouns to replace the direct and indirect objects in the sentence 'Tengo que teclear mi ensayo' are 'lo' and 'lo' respectively. Therefore, the corrected sentence would be 'Tengo que teclearlo.' The pronoun 'lo' is used to replace the direct object 'mi ensayo', while the pronoun 'lo' is used to replace the indirect object 'a mí'.
Learn more about Pronouns in Spanish