IT / WRONG / YOU / NOT / HELP HIM / STUDIES. A. IT WAS WRONG FOR Y...

40. It / wrong / you / not / help him / studies. a. It was wrong for you not to help him with his studies. b. It was wrong of you to not help him with his studies. c. It was wrong of you not to help him with his studies. d. It was wrong on you not to help him with his studies.