Unit ONe PartⅠ Understanding and Learning Section A Learning a Foreign Language Section B Keys to Successful Online Learing Section C Teaching CHildren at Home PartⅡ Key to the Exercises Unit Two PartⅠ Understanding and Learning Section A A Busy Weekday Morning Section B Parent Talk Section C Teenagne Talk PartⅡ Key to the Exercises Unit Three PartⅠ Understanding and Learning Section A Good Heart to Lean On Section B The Right Son at the Right Time Section C Love of Life PartⅡ Key to the Exercises 1999年1月四級考試全真試題（Ⅰ） Unit Four PartⅠ Understanding and Learning PartⅡ Key to the Exercises Unit Five PartⅠ Understanding and Learning PartⅡ Key to the Exercises Unit SIx PartⅠ Understanding and Learning PartⅡ Key to the Exercises Unit Seven PartⅠ Understanding and Learning PartⅡ Key to the Exercises 1999年1月四級考試全真試題（Ⅱ） Unit Eight PartⅠ Understanding and Learning PartⅡ Key to the Exercises Unit Nine PartⅠ Understanding and Learning PartⅡ Key to the Exercises Unit Ten PartⅠ Understanding and Learning PartⅡ Key to the Exercises 1999年1月四級考試全真試題（Ⅲ）
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