How many English words do you need to master to do well in TOEFL/SAT/PSAT/SSAT/GMAT/GRE? It's hard to say, but the one thousand core English words included in this book definitely help you lay down a solid foundation for success in taking any of the common English tests. Learning and understanding these words will significantly enhance your communication competency in English because words are essential building blocks of communication. Unlike other vocabulary tests, the 40 test units in the book put words in well constructed contexts from real life. The tests emphasize understanding of the...