Complete spanish sentences in the future tense

When we conjugate a verb, we a. change the form of the infinitive b. make it agree with the subject c. indicate the verb tense d. all of the above

Spanish, no translator 1. translate: i have to eat. 2. translate: one must study. 3. to make a good grade, one must pay attention. para sacar una buena nota, prestar atención. 4. to make money, one must work. para ganar dinero, trabajar. 5. translate: maria has to talk.

Tu hermano — en san francisco. a. vives ob. vivo o c. vive od. viven