Answer:
For the first one, there should be quotation marks around "Get away from that car" and it should have an exclamation point at the end. There should also be a comma between careful and ever watchful, as well as a comma between guard and stout, and a comma between shouted and get away.
For the second one, its should be changed to it's, and ironical should be ironic. Don't should also have an apostrophe, changing it to don't. The word student's should not have an apostrophe, it should be students.