Write two sentences using the verb "organize." in the first sentence, use the verb in passive voice. in the second, use the verb in active voice.

This is passive voice: When the schedule is properly organized, students tend to do better in class.  

This is active voice: I like organizing festivals.

When using active voice the subject (agent or actor) of the sentence is the one performing the action.

When using passive voice, it is the subject of the sentence which is being acted upon by the verb.

there is no sentence to look at.

answer: b (host)

viruses use the cells of living organisms to reproduce. the cell which is used by virus is called as "host cell". it is a living cell in which virus multiplies, example bacteria, plant or an animal cell.

in this, the virus is a parasite, which uses host cell for its benefit (reproduction) by using the cell machinary of host cell.