Final answer:
The correct verb to fill in the blank is 'anduvimos' which means 'we walked' in the past weekend.
Step-by-step explanation:
The correct answer is C. anduvimos.
In the sentence, it is stated that 'El fin de semana pasado, mis amigos y yo' which means 'Last weekend, my friends and I...'. The verb that correctly completes the sentence in the preterite tense is 'anduvimos', which means 'we walked'.
Example: El fin de semana pasado, mis amigos y yo anduvimos hasta el parque. (Last weekend, my friends and I walked to the park.)
Learn more about Spanish verbs