错例1:Apart-time job offers you chance to demonstrate your ability and applywhat you have learned in school. 正解:Apart-time job offers you a chance to demonstrate your ability and apply what you have learned in school. 错例2:Booksare of the various kinds and have different contents. 正解:Booksare of various kinds and have different contents. 改错练习: 1. The problemsthat are created by environmental contamination is very hard to resolve. 2. The governmentsof all countries on this planet is beginning to realize the severity of watershortage.