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选择性必修第一册 Unit 2 Looking into the Future (51)
选择性必修第一册 Unit 1 People of Achievement (49)
必修第二册 Unit 4 History and Traditions (48)
必修第二册 Unit 2 Wildlife Protection (46)
必修第二册 Unit 1 Cultural Heritage (45)
必修第三册 Unit 4 Space Exploration (43)
必修第三册 Unit 3 Diverse Cultures (42)
必修第三册 Unit 2 Morals and Virtues (41)