PLZZ NEED HELP WITH THIS

El padre regaló un coche a su hijo, pablo.

En los restaurantes de ecuador, la gente fumar en el exterior. a. necesario b. ni c. siempre d. debe

A. the verb table below has three columns. the first column has the present tense of a verb. the second column has the infinitive of the verb. the third column has the preterite tense of the verb. fill in the blank squares of the table with the form that is missing. (see the attach file)