Ihave a grammar test coming up next tuesday. i cannot seem to find a good rule for active and passive voices. i have flunked all of the worksheets that my teacher gave us on it. me find a rule so i will do well on my test.

An active voice is a straight out sentence like "She wrote a song". The focus is on the she and that she wrote a song. Simple.
Now the passive voice is different. This is a tip that I use a lot to figure out the difference. Passive voices usually have a to be verb like is, were, was, and a past participle, like learned, cleaned, and watched.
In this case, the sentence in passive voice would be "A song was written by her." Notice how was is a to be verb and written is a part participle.
Hope this clears up any confusion and write in the comments if you have any questions. And good luck on your test :)

A, this way you know that there’s a less of a chance of it having biased information or edited by other people-making false information