To change the voice of the first sentence to passive voice, we must write it as "the task was submitted by him." Based on this, we can write the other sentences, with the passive voice as follows:
Food has damaged buildings.
Made by food damage.
The office is being cleaned by her.
The office was cleaned by her.
<h3>What is passive voice?</h3>
The passive voice is a way of establishing the relationship between the subject and the verb of a sentence. With the passive voice, the subject undergoes the action of the verb. This is the opposite of the active voice, where the subject promotes the action of the verb.
The correct way to punctuate is seen in b: <span>To whom it may concern: </span> In formal settings and when you don't know the exact identity of the person a dresses it is usual to use a colon in this situation.
