You can start with WORD SMART. To get more strong in vocabulary read Barron. Regular reading of English newspapers/books will help you a lot. Get some insights about preparation of GRE/TOEFL from here http://www.mystudynotebook.com/blog/single/12/
Our experts will answer your question. Selected question and answer will be added to our FAQ
database for future reference and easy searching. Thus we help you and you help the community!