Chris McCandless went on long trips alone in his car. He donated all his savings to charity and left his car in America. He wanted to test his ability and survive alone. When he is in<span> the wild, he was sick, injured and weak. He wrote a message on the bus saying he is alone and he needs help.</span>
B.when an action is done
when an action is done to it when it is describing the verb when it possesses something when it is doing the action.