This is what I would advice for your Verbal score to improve.
1. Based on the # of incorrect answers in the verbal section, you need to improve on SC & CR. Get the MGMAT SC
book and turn it from cover to cover. Also do the OG exercises as you go through the material. It will get your scores up.
2. On CR, I found that doing just one type of question (say assumptions) was helpful because a pattern eventually emerges. I suggest you this with OG questions using the MGMAT CR
guide as a companion. The guide is pretty decent if you want to have some structure to answering CR questions.
Finally, when it comes to verbal, know the rules of SC and have a structured approach to CR questions. Then review ALL the OG questions (twice over if necessary). If you do these, your verbal is likely to improve. Good luck bud.