Tao-chung Yao and Yuehua Liu
all material © Cheng & Tsui Co.
Textbook
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Workbook
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Lesson 20 Text
Lesson 20 Vocabulary
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Lesson 20 Workbook Dialogue
Lesson 20 Workbook Narrative 1
Lesson 20 Workbook Narrative 2
Lesson 20 Workbook Rejoinder
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