Correct Answer: Unpublished authors were being expected by the magazine house for their forthcoming exclusive issue on new trends.

Solution : The correct choice is the second option.

Passive voice is the voice in which the object experiences an action rather than the person who performs the action. Hence, the object in the active sentence becomes the subject in the passive voice.

The passive voice structure in the case of the past continuous tense is: "Plural object + were + being + past participle form of the verb + by followed by the agent of the action."

Therefore, the right answer is: "Unpublished authors were being expected by the magazine house for their forthcoming exclusive issue on new trends."