Complete the sentence with the present-simple be-passive form of the verb in brackets: A staff member must perform the renewal; the membership cannot renew itself. Unless the membership ___ by a staff member before Monday, access to the workshop will end. (renew)
Respuesta correcta
is renewed
Explicación
Is renewed is the requested present-simple be-passive and keeps the future condition in a present form after unless. Renews assigns the action to the membership, while has been renewed uses a perfect aspect that the form instruction does not request.