It shows the doer of the action.It comes before verb and indicates this action or work is done by it/him/her etc.Ex.Susan switched off the lights. Who switched off the lights? The answer is Susan (subject of the sentence)
Oh wow you have this on English?
You can do it
C. To send his son back to the cemetery
<span>Read the Aesop's fable of The Wolf and the Lamb from this famous book. ... "There's my supper," thought he, "if only I can find some excuse to seize it." Then he ...</span><span>
</span>