Answer:
The room is being swept (by me).
Explanation:
Passive voice is a construction that we use when we want to put the accent on a person or an object that is under the influence of a subject`s performed action ( in this case: the room)
Passive voice form is being made by using the appropriate form of the verb to be + past participle.
Subject and object from the sentence in the active voice switch places in the sentence in a passive voice ( I; the room - the room; (by) me).
In the given sentence the used tense is present continuous and the appropriate form of the verb to be for that tense in passive voice is is being.
