There are three main sections in the Verbal section: Reading Comprehension, Critical Reasoning and Sentence Correction.

Reading Comprehension is one section that every standardized exam contain. To simply put it, you read a passage and you answer multiple choice questions regarding the passage

Critical Reasoning is primarily focused on logic. You are given a passage that typically contains 2-3 sentences. Then you are expected to pick an answer that makes a judgment on the short passage. 

Sentence Correction tests you on your basic grammar skills. But do not be fooled, GMAT grammar is very different from the spoken English. You are expected to correct the mistake, if any, of the underlined portion of a sentence.

When reviewing, try using the 70-30 rule.

70% - devoted to your weaknesses

30% - devoted to reinforcing your strengths

If you do not know your strengths and weaknesses, try using our Self Assessment for a in depth evaluation.  

Remember to focus on your weaknesses.

Reading Comprehension

Critical Reasoning

Sentence Correction