Instruct: Classify Amazon reviews into positive or negative sentiment
Query: the best

This book is the one of the best toefl books for me.. Other best one is Thompson Toefl book... Thompson's writing section is better than Cambridge. Cambridge reading section is exactly same as real toefl and readings are nice.. I just recommend this two toefl books.. Longman, Barron, and Kaplan can be 3rd and 4th...