Unfortunately, there's no silver bullet to boost your verbal score overnight. The verbal section tests your facility with English generally. This is something that can take quite awhile even for native English speakers.
That said, don't despair if you absolutely must take the GMAT in a few days and feel as though you're scrambling to shore up your verbal score — we do have some useful strategies for you!
First, make sure you do some practice questions! This will help you get familiar with the GMAT question types (and the instructions). You should be practicing your pacing strategy when you do this, and you should focus on those questions types that you have struggled with the most. When you do these questions, be sure to do the following:
- Watch the explanation video and read the text explanation.
- Look up the words that you don't know or don't know well.
- Reread the text, question, and answer choices. Know the logic of the question well enough that you could explain it to someone else.
Spending this much time on each question might seem wasteful. But studying in this way helps you to get the most out of each question. When you move quickly from one question to another, you're only testing what you already know — you aren't adding to your knowledge or skill set.
A couple of days before your exam, take a practice test (we recommend the official GMATPrep tests). If possible, you don't want to go into test day never having done an entire practice test.
Save the day before your exam for resting. Your brain needs time to relax from all that studying in order to be functioning as well as possible on test day. Don't underestimate the value of a rest day!