Like other sections Sentence Equivalence also require a solid base of vocabulary. You cannot be confident to solve the questions without a wide base of English vocabulary. At the same time you also have grip on English grammar as well.
The words used in this section are confusing and often difficult to memorize and understand. If you have learnt synonyms you will find the questions easy. For learning Synonyms go to the section of synonyms in this site.
You can make your use of English Grammar in this section learn it in this site.
Video Lessons and 10 Fully Explained Grand Tests
Large number of solved practice MCQ with explanations. Video Lessons and 10 Fully explained Grand/Full Tests.