Yo _______ la tarea para la clase de español translates to "I [blank] homework for the Spanish class." The options are as follows.
a. hice - "I did"
b. hiciste - "you did" (informal)
c. hicieron - "they did"
d. hicimos - "we did"
The subject of the sentence is yo, meaning "I"; the correct past tense conjugation of the verb hacer for yo is hice.
Yo hice la tarea para la clase de español - "I did the homework for the Spanish class."