Here's my general approach on the English section - it brought 4 of my students to 35 on the February test. I hope you find it useful!

As a preface, this approach really relies on a strong understanding of grammar. If you don't know what a parenthetical is or that the passive voice looks like, you're going to have a difficult time no matter what unless you read a lot (and have developed a strong intuitive understanding). Even then, most of my "I go with my gut!" students have peaked around 31-33 and have struggled to get those last points until they thoroughly review their grammar rules. Anyhow, here's the step-by-step approach:

1. When you first see a problem, determine whether it is Grammar (incorrect answers are grammatically wrong), Style (incorrect answers violate stylistic guidelines), and Content (correct answers follow the instructions of the question). Each of these categories has specific problem types associated with it. Usually problems only involve one of these three categories.

2. Once you've identified the problem type, identify what concept is being tested. This helps further narrow down what you need to be thinking about. For example, let's suppose the answer choices on my grammar question all vary based on comma placement. I know that commas are heavily dependent on clause structure, so really the question is probably a mix of identifying independent vs. dependent clauses and parenthetical phrases.

3. Get to solving. The two "trickiest" in my experience are redundancy and passive vs. active questions. Make sure you're being especially careful for these. Comma rules are probably the most challenging grammar questions overall. And for style questions, just do exactly what it tells you to do - don't overthink them. On best sentence placement questions, physically mark the locations that the question wants you to try - this greatly improves accuracy in my experience.

If you can identify what you're being tested on, your accuracy rate will go up. Identifying question types also helps you when you miss questions, since you will be able to spot your weaknesses and study them more effectively. Remember - quality and quantity are both important when it comes to studying for these tests. A student that spends 20 hours in intense, reflective study is going to outperform the student that does 40 hours of distracted, non-introspective study.