Sentences can either used as active or passive voices. A sentence is active the subject pf the sentence is the one performing the action with the formula: subject + verb + receiver of the action. A sentence is passive when the subject is the one upon by the verb. The formula is subject + be + verb past participle + receiver of the action. In the sentences above, the answer is letter B: A commencement speech has already been written by the principal.
Which sentence contains a verb in passive voice? a. Where did you find my coat? b. A commencement speech has already been written by the principal. c. Times like these are precious. d. Our neighbors invited us over for a barbecue.