Fill in the blank with the correct conjugation of the verb in parentheses mi maestro no (permitir) mucho en la clase. a. permito b. permitimos c. permiten d. permite

Since Mi maestro can be replaced by él, which is the subject pronoun that matches the third person singular, then we must choose the conjugation of the verb permitir that matches this person as well. From the options, this conjugation is permite. Also, this conjugation stands for the simple present. The other conjugations are permito (first person singular), permitimos (first person plural) and permiten (third person plural). Finally:

Mi maestro no permite mucho en la clase.