vhaditya
Is it recommended that one peruse(and memorize) the Sentence Completion strategies completely? For instance, the
Manhattan GMAT book classifies the SC questions into 10 different forms(Subject-Verb agreement, pronouns, modifiers etc). Or is it a better idea to just understand the basic concepts and then practice as many SC questions as possible so as to not only understand(and identify) the type of questions but learn the strategy through more practice.
-PS pardon me for using long sentences. The question itself is regarding the SC.
vhaditya memorizing things with a few exceptions (such as fundamental equations in Quant or some common idioms in SC) is a bad idea. Process of Elimination (POE) is by far the best strategy in SC. Before starting the POE, you should invest at least 50% of the time in reading the original sentence and making sure you understand its
intended meaning. While reading the original sentence, you may simultaneously hunt for obvious errors such as SV disagreement, misplaced modifier, pronoun error, parallelism issues, comparison error, and so on. During POE you are essentially looking at each answer choice and try to find the issue with it. I am not nearly as good as Verbal experts such as
generis and
GMATNinja, but they will likely say that 80% of the SC questions (even hard ones) contain at least 2-3 answer choices that are quite obviously wrong.
My recommendation is to go through one resource, e.g. Manhattan SC guide, do all problems at the end of each chapter, and then start practicing SC questions from
OG. You may want to be selective about the source of your questions. I suggest to use
OG and maybe few more resources such as Manhattan & Veritas Prep. With enough practice you will likely be able to automatically say whether the question is official or from a 3rd party.
Good luck!