what is passive and active?

ACTIVE:

In active sentences, the thing doing the action is the subject of the sentence and the thing receiving the action is the object. Most sentences are active.

PASSIVE
In passive sentences, the thing receiving the action is the subject of the sentence and the thing doing the action is optionally included near the end of the sentence. You can use the passive form if you think that the thing receiving the action is more important or should be emphasized. You can also use the passive form if you do not know who is doing the action or if you do not want to mention who is doing the action.

so like this the students' tests were graded electronically. it is passive. right?

Yes, it is.

No, I am not sure which school you go to, but I'm sure your teachers reads it. AND grades them...But this is kind of plagiarism, you might get 0 in this. I suggest you, change ALOT of what I gave you.

Oops my bad I wrote the wrong Word XD. What I meant to say was YES. Sorry my mind was not with you @misty

It is ok i am homedschooled. my mom saed it is ok

what is possessive form?

See my response to your later post.

which one?

Words that contain this punctuation: '

For example: Margaret Corbin(')s action changed history.